Description of problem: Version-Release number of selected component (if applicable): 5.4.2 How reproducible: 100% Steps to Reproduce: 1.Navigate to infrastructure->providers->click on scvmm provider 2.on summary page click on templates 3.From list view, select a template. 5.clone selected template from Lifecycle. Actual results: UI is just refresed amd FATAL -- : Error caught: [AbstractController::DoubleRenderError] is displayed in production.log Expected results: scvmm template clone from list view page Additional info: production.log [----] I, [2015-08-31T06:01:09.050174 #2490:a0fe9c] INFO -- : Started POST "/ems_infra/button/1?pressed=miq_template_clone" for 127.0.0.1 at 2015-08-31 06:01:09 -0400 [----] I, [2015-08-31T06:01:09.053906 #2490:a0fe9c] INFO -- : Processing by EmsInfraController#button as JS [----] I, [2015-08-31T06:01:09.053995 #2490:a0fe9c] INFO -- : Parameters: {"miq_grid_checks"=>"42", "pressed"=>"miq_template_clone", "id"=>"1"} [----] I, [2015-08-31T06:01:09.082188 #2490:a0fe9c] INFO -- : Rendered layouts/_flash_msg.html.haml (0.4ms) [----] F, [2015-08-31T06:01:09.083068 #2490:a0fe9c] FATAL -- : Error caught: [AbstractController::DoubleRenderError] Render and/or redirect were called multiple times in this action. Please note that you may only call render OR redirect, and at most once per action. Also note that neither redirect nor render terminate execution of the action, so if you want to exit an action after redirecting, you need to do something like "redirect_to(...) and return". /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/rendering.rb:15:in `render' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/core_ext/benchmark.rb:5:in `block in ms' /opt/rh/ruby200/root/usr/share/ruby/benchmark.rb:296:in `realtime' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/core_ext/benchmark.rb:5:in `ms' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/instrumentation.rb:40:in `block in render' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/instrumentation.rb:83:in `cleanup_view_runtime' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activerecord/lib/active_record/railties/controller_runtime.rb:24:in `cleanup_view_runtime' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/instrumentation.rb:39:in `render' /var/www/miq/vmdb/app/controllers/ems_common.rb:478:in `button' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/implicit_render.rb:4:in `send_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/abstract_controller/base.rb:167:in `process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/rendering.rb:10:in `process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/abstract_controller/callbacks.rb:18:in `block in process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/callbacks.rb:568:in `_run__4211815181488757795__process_action__1902946125717690074__callbacks' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/callbacks.rb:405:in `__run_callback' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/callbacks.rb:81:in `run_callbacks' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/abstract_controller/callbacks.rb:17:in `process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/rescue.rb:29:in `process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/instrumentation.rb:30:in `block in process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/notifications.rb:123:in `block in instrument' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/notifications/instrumenter.rb:20:in `instrument' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/notifications.rb:123:in `instrument' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/instrumentation.rb:29:in `process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/params_wrapper.rb:207:in `process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activerecord/lib/active_record/railties/controller_runtime.rb:18:in `process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/abstract_controller/base.rb:121:in `process' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/abstract_controller/rendering.rb:45:in `process' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal.rb:203:in `dispatch' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/rack_delegation.rb:14:in `dispatch' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal.rb:246:in `block in action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/routing/route_set.rb:73:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/routing/route_set.rb:73:in `dispatch' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/routing/route_set.rb:36:in `call' /opt/rh/cfme-gemset/gems/journey-1.0.4/lib/journey/router.rb:68:in `block in call' /opt/rh/cfme-gemset/gems/journey-1.0.4/lib/journey/router.rb:56:in `each' /opt/rh/cfme-gemset/gems/journey-1.0.4/lib/journey/router.rb:56:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/routing/route_set.rb:608:in `call' /opt/rh/cfme-gemset/gems/rack-cache-1.2/lib/rack/cache/context.rb:136:in `forward' /opt/rh/cfme-gemset/gems/rack-cache-1.2/lib/rack/cache/context.rb:143:in `pass' /opt/rh/cfme-gemset/gems/rack-cache-1.2/lib/rack/cache/context.rb:155:in `invalidate' /opt/rh/cfme-gemset/gems/rack-cache-1.2/lib/rack/cache/context.rb:71:in `call!' /opt/rh/cfme-gemset/gems/rack-cache-1.2/lib/rack/cache/context.rb:51:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/best_standards_support.rb:17:in `call' /opt/rh/cfme-gemset/gems/rack-1.4.7/lib/rack/etag.rb:23:in `call' /opt/rh/cfme-gemset/gems/rack-1.4.7/lib/rack/conditionalget.rb:35:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/head.rb:14:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/params_parser.rb:21:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/flash.rb:242:in `call' /opt/rh/cfme-gemset/gems/rack-1.4.7/lib/rack/session/abstract/id.rb:210:in `context' /opt/rh/cfme-gemset/gems/rack-1.4.7/lib/rack/session/abstract/id.rb:205:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/cookies.rb:341:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activerecord/lib/active_record/query_cache.rb:64:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/callbacks.rb:405:in `_run__1796207997244531990__call__1956415930842354008__callbacks' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/callbacks.rb:405:in `__run_callback' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/callbacks.rb:385:in `_run_call_callbacks' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/callbacks.rb:81:in `run_callbacks' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/callbacks.rb:27:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/remote_ip.rb:31:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/show_exceptions.rb:56:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/rack/logger.rb:32:in `call_app' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/rack/logger.rb:18:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/request_id.rb:22:in `call' /opt/rh/cfme-gemset/gems/rack-1.4.7/lib/rack/methodoverride.rb:21:in `call' /opt/rh/cfme-gemset/gems/rack-1.4.7/lib/rack/runtime.rb:17:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/cache/strategy/local_cache.rb:72:in `call' /opt/rh/cfme-gemset/gems/rack-1.4.7/lib/rack/lock.rb:15:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/static.rb:63:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/engine.rb:484:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/application.rb:231:in `call' /opt/rh/cfme-gemset/gems/rack-1.4.7/lib/rack/content_length.rb:14:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/rack/log_tailer.rb:17:in `call' /opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/connection.rb:80:in `block in pre_process' /opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/connection.rb:78:in `catch' /opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/connection.rb:78:in `pre_process' /opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/connection.rb:53:in `process' /opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/connection.rb:38:in `receive_data' /opt/rh/ruby200/root/usr/share/gems/gems/eventmachine-1.0.7/lib/eventmachine.rb:187:in `run_machine' /opt/rh/ruby200/root/usr/share/gems/gems/eventmachine-1.0.7/lib/eventmachine.rb:187:in `run' /opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/backends/base.rb:61:in `start' /opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/server.rb:159:in `start' /opt/rh/cfme-gemset/gems/rack-1.4.7/lib/rack/handler/thin.rb:13:in `run' /opt/rh/cfme-gemset/gems/rack-1.4.7/lib/rack/server.rb:268:in `start' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/commands/server.rb:70:in `start' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/commands.rb:55:in `block in <top (required)>' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/commands.rb:50:in `tap' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/commands.rb:50:in `<top (required)>' script/rails:6:in `require' script/rails:6:in `<main>' [----] I, [2015-08-31T06:01:09.083516 #2490:a0fe9c] INFO -- : Completed 500 Internal Server Error in 29.4ms [----] F, [2015-08-31T06:01:09.085313 #2490:a0fe9c] FATAL -- : AbstractController::DoubleRenderError (Render and/or redirect were called multiple times in this action. Please note that you may only call render OR redirect, and at most once per action. Also note that neither redirect nor render terminate execution of the action, so if you want to exit an action after redirecting, you need to do something like "redirect_to(...) and return".): /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/rendering.rb:15:in `render' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/core_ext/benchmark.rb:5:in `block in ms' /opt/rh/ruby200/root/usr/share/ruby/benchmark.rb:296:in `realtime' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/core_ext/benchmark.rb:5:in `ms' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/instrumentation.rb:40:in `block in render' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/instrumentation.rb:83:in `cleanup_view_runtime' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activerecord/lib/active_record/railties/controller_runtime.rb:24:in `cleanup_view_runtime' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/instrumentation.rb:39:in `render' app/controllers/application_controller.rb:101:in `block (2 levels) in render_exception' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/mime_responds.rb:196:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/mime_responds.rb:196:in `respond_to' app/controllers/application_controller.rb:99:in `render_exception' app/controllers/application_controller.rb:94:in `error_handler' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/rescuable.rb:80:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/rescuable.rb:80:in `rescue_with_handler' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/rescue.rb:15:in `rescue_with_handler' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/rescue.rb:32:in `rescue in process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/rescue.rb:29:in `process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/instrumentation.rb:30:in `block in process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/notifications.rb:123:in `block in instrument' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/notifications/instrumenter.rb:20:in `instrument' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/notifications.rb:123:in `instrument' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/instrumentation.rb:29:in `process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/params_wrapper.rb:207:in `process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activerecord/lib/active_record/railties/controller_runtime.rb:18:in `process_action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/abstract_controller/base.rb:121:in `process' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/abstract_controller/rendering.rb:45:in `process' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal.rb:203:in `dispatch' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal/rack_delegation.rb:14:in `dispatch' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_controller/metal.rb:246:in `block in action' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/routing/route_set.rb:73:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/routing/route_set.rb:73:in `dispatch' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/routing/route_set.rb:36:in `call' journey (1.0.4) lib/journey/router.rb:68:in `block in call' journey (1.0.4) lib/journey/router.rb:56:in `each' journey (1.0.4) lib/journey/router.rb:56:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/routing/route_set.rb:608:in `call' rack-cache (1.2) lib/rack/cache/context.rb:136:in `forward' rack-cache (1.2) lib/rack/cache/context.rb:143:in `pass' rack-cache (1.2) lib/rack/cache/context.rb:155:in `invalidate' rack-cache (1.2) lib/rack/cache/context.rb:71:in `call!' rack-cache (1.2) lib/rack/cache/context.rb:51:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/best_standards_support.rb:17:in `call' rack (1.4.7) lib/rack/etag.rb:23:in `call' rack (1.4.7) lib/rack/conditionalget.rb:35:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/head.rb:14:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/params_parser.rb:21:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/flash.rb:242:in `call' rack (1.4.7) lib/rack/session/abstract/id.rb:210:in `context' rack (1.4.7) lib/rack/session/abstract/id.rb:205:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/cookies.rb:341:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activerecord/lib/active_record/query_cache.rb:64:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/callbacks.rb:405:in `_run__1796207997244531990__call__1956415930842354008__callbacks' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/callbacks.rb:405:in `__run_callback' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/callbacks.rb:385:in `_run_call_callbacks' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/callbacks.rb:81:in `run_callbacks' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/callbacks.rb:27:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/remote_ip.rb:31:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/show_exceptions.rb:56:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/rack/logger.rb:32:in `call_app' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/rack/logger.rb:18:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/request_id.rb:22:in `call' rack (1.4.7) lib/rack/methodoverride.rb:21:in `call' rack (1.4.7) lib/rack/runtime.rb:17:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/activesupport/lib/active_support/cache/strategy/local_cache.rb:72:in `call' rack (1.4.7) lib/rack/lock.rb:15:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/actionpack/lib/action_dispatch/middleware/static.rb:63:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/engine.rb:484:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/application.rb:231:in `call' rack (1.4.7) lib/rack/content_length.rb:14:in `call' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/rack/log_tailer.rb:17:in `call' thin (1.3.1) lib/thin/connection.rb:80:in `block in pre_process' thin (1.3.1) lib/thin/connection.rb:78:in `catch' thin (1.3.1) lib/thin/connection.rb:78:in `pre_process' thin (1.3.1) lib/thin/connection.rb:53:in `process' thin (1.3.1) lib/thin/connection.rb:38:in `receive_data' eventmachine (1.0.7) lib/eventmachine.rb:187:in `run_machine' eventmachine (1.0.7) lib/eventmachine.rb:187:in `run' thin (1.3.1) lib/thin/backends/base.rb:61:in `start' thin (1.3.1) lib/thin/server.rb:159:in `start' rack (1.4.7) lib/rack/handler/thin.rb:13:in `run' rack (1.4.7) lib/rack/server.rb:268:in `start' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/commands/server.rb:70:in `start' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/commands.rb:55:in `block in <top (required)>' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/commands.rb:50:in `tap' /opt/rh/cfme-gemset/bundler/gems/rails-4842a8377644/railties/lib/rails/commands.rb:50:in `<top (required)>' script/rails:6:in `require' script/rails:6:in `<main>'
similar issue is observed when you navigate to VMs list from provider summary page do a vm clone or publish vm to a template.
https://github.com/ManageIQ/manageiq/pull/4333
https://github.com/ManageIQ/manageiq/pull/3672
*** This bug has been marked as a duplicate of bug 1263326 ***