Excerpt from /var/log/foreman/production.log:
2016-07-21 07:04:10 [app] [W] fusor_server did not find 'Katello.config.logging.ignored_paths' available, skipping silence of logs for '["api/v21/foreman_tasks", "fusor/api/v21/unlogged"]'
2016-07-21 07:04:41 [app] [W] Foreman anonymous admin does not exist, skipping content host migration.
2016-07-21 07:04:46 [app] [W] Recreating the whole DB cache
2016-07-21 07:04:46 [foreman-tasks/dynflow] [I] start terminating delayed_executor...
2016-07-21 07:04:46 [foreman-tasks/dynflow] [I] start terminating throttle_limiter...
2016-07-21 07:04:46 [foreman-tasks/dynflow] [I] start terminating executor...
2016-07-21 07:04:46 [foreman-tasks/dynflow] [I] shutting down Core ...
2016-07-21 07:04:46 [foreman-tasks/dynflow] [E] ... core terminated.
2016-07-21 07:04:46 [foreman-tasks/dynflow] [I] start terminating executor dispatcher...
2016-07-21 07:04:46 [foreman-tasks/dynflow] [I] start terminating client dispatcher...

over..and...over

javascript console shows:
Transitioned into 'deployment.subscriptions.select-subscriptions'

more from production.log:
2016-07-21 11:08:54 [app] [I] Started PUT "/fusor/api/v21/deployments/1" for 10.10.116.69 at 2016-07-21 11:08:54 -0400
2016-07-21 11:08:54 [app] [I] Processing by Fusor::Api::V21::DeploymentsController#update as JSON
2016-07-21 11:08:54 [app] [I]   Parameters: {"deployment"=>{"name"=>"<<deployment name>>", "label"=>"<<deployment name>>", "description"=>"", "deploy_rhev"=>false, "deploy_cfme"=>false, "deploy_openstack"=>true, "deploy_openshift"=>false, "is_disconnected"=>false, "has_content_error"=>false, "rhev_is_self_hosted"=>false, "rhev_engine_admin_password"=>"[FILTERED]", "rhev_data_center_name"=>"Default", "rhev_cluster_name"=>"Default", "rhev_storage_name"=>"my_storage", "rhev_storage_type"=>"NFS", "rhev_storage_address"=>nil, "rhev_cpu_type"=>nil, "rhev_share_path"=>nil, "cfme_install_loc"=>nil, "rhev_root_password"=>"[FILTERED]", "cfme_root_password"=>"[FILTERED]", "cfme_admin_password"=>"[FILTERED]", "cfme_db_password"=>"[FILTERED]", "foreman_task_uuid"=>nil, "upstream_consumer_uuid"=>"<<consumer_uuid>>", "upstream_consumer_name"=>"<<sma_name>>", "rhev_export_domain_name"=>"my_export", "rhev_export_domain_address"=>nil, "rhev_export_domain_path"=>nil, "hosted_storage_name"=>"my_hosted_storage", "hosted_storage_address"=>nil, "hosted_storage_path"=>nil, "rhev_local_storage_path"=>nil, "host_naming_scheme"=>"Freeform", "custom_preprend_name"=>nil, "enable_access_insights"=>false, "cfme_address"=>nil, "cfme_hostname"=>nil, "cdn_url"=>nil, "manifest_file"=>nil, "openshift_install_loc"=>nil, "openshift_number_master_nodes"=>nil, "openshift_number_worker_nodes"=>nil, "openshift_storage_size"=>nil, "openshift_username"=>nil, "openshift_user_password"=>"[FILTERED]", "openshift_root_password"=>"[FILTERED]", "openshift_master_vcpu"=>nil, "openshift_master_ram"=>nil, "openshift_master_disk"=>nil, "openshift_node_vcpu"=>nil, "openshift_node_ram"=>nil, "openshift_node_disk"=>nil, "openshift_available_vcpu"=>nil, "openshift_available_ram"=>nil, "openshift_available_disk"=>nil, "openshift_storage_type"=>nil, "openshift_storage_host"=>nil, "openshift_export_path"=>nil, "openshift_subdomain_name"=>nil, "openshift_sample_helloworld"=>false, "cloudforms_vcpu"=>nil, "cloudforms_ram"=>nil, "cloudforms_vm_disk_size"=>nil, "cloudforms_db_disk_size"=>nil, "created_at"=>"2016-07-21T14:45:36.559Z", "updated_at"=>"2016-07-21T14:45:36.559Z", "rhev_engine_host_id"=>nil, "organization_id"=>"1", "lifecycle_environment_id"=>nil, "discovered_host_id"=>nil, "foreman_task_id"=>nil, "openstack_deployment_id"=>"1"}, "api_version"=>"v21", "id"=>"1"}
2016-07-21 11:08:54 [app] [I] Processing by Fusor::Api::CustomerPortal::CustomerPortalProxiesController#get as JSON
2016-07-21 11:08:54 [app] [I]   Parameters: {"consumer"=>"e0429d10-0986-4aae-b008-ddb1f11d2cf6", "listall"=>"false", "uuid"=>"e0429d10-0986-4aae-b008-ddb1f11d2cf6"}
2016-07-21 11:08:54 [app] [I] Completed 200 OK in 28ms (Views: 5.0ms | ActiveRecord: 9.3ms)
2016-07-21 11:08:54 [app] [I] Started GET "/fusor/api/v21/subscriptions?deployment_id=1&source=added" for 10.10.116.69 at 2016-07-21 11:08:54 -0400
2016-07-21 11:08:54 [app] [I] Processing by Fusor::Api::V21::SubscriptionsController#index as JSON
2016-07-21 11:08:54 [app] [I]   Parameters: {"deployment_id"=>"1", "source"=>"added", "api_version"=>"v21"}
2016-07-21 11:08:54 [app] [I] Completed 200 OK in 5ms (Views: 0.7ms | ActiveRecord: 0.9ms)
2016-07-21 11:08:55 [app] [I] Completed 200 OK in 1452ms (Views: 6.8ms | ActiveRecord: 0.8ms)
2016-07-21 11:08:56 [app] [I] Completed 200 OK in 2050ms (Views: 5.3ms | ActiveRecord: 0.6ms)
2016-07-21 11:13:45 [foreman-tasks/dynflow] [I] start terminating throttle_limiter...

Note: No user-visible feedback nor way to cancel this process.

Uploaded foreman-debug

Refreshed page with same results.  foreman-tail did help me to find:
2016-07-21 12:03:27 [app] [I] Started GET "/javascripts/fusor_ui/application_no_tl.js" for 10.10.116.69 at 2016-07-21 12:03:27 -0400
2016-07-21 12:03:27 [app] [F] 
 | ActionController::RoutingError (No route matches [GET] "/javascripts/fusor_ui/application_no_tl.js"):
 |   actionpack (4.1.5) lib/action_dispatch/middleware/debug_exceptions.rb:21:in `call'
 |   actionpack (4.1.5) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
 |   railties (4.1.5) lib/rails/rack/logger.rb:38:in `call_app'
 |   railties (4.1.5) lib/rails/rack/logger.rb:22:in `call'
 |   actionpack (4.1.5) lib/action_dispatch/middleware/request_id.rb:21:in `call'
 |   rack (1.5.2) lib/rack/methodoverride.rb:21:in `call'
 |   rack (1.5.2) lib/rack/runtime.rb:17:in `call'
 |   activesupport (4.1.5) lib/active_support/cache/strategy/local_cache_middleware.rb:26:in `call'
 |   actionpack (4.1.5) lib/action_dispatch/middleware/static.rb:64:in `call'
 |   actionpack (4.1.5) lib/action_dispatch/middleware/static.rb:64:in `call'
 |   actionpack (4.1.5) lib/action_dispatch/middleware/static.rb:64:in `call'
 |   rack (1.5.2) lib/rack/sendfile.rb:112:in `call'
 |   railties (4.1.5) lib/rails/engine.rb:514:in `call'
 |   railties (4.1.5) lib/rails/application.rb:144:in `call'
 |   railties (4.1.5) lib/rails/railtie.rb:194:in `public_send'
 |   railties (4.1.5) lib/rails/railtie.rb:194:in `method_missing'
 |   rack (1.5.2) lib/rack/builder.rb:138:in `call'
 |   rack (1.5.2) lib/rack/urlmap.rb:65:in `block in call'
 |   rack (1.5.2) lib/rack/urlmap.rb:50:in `each'
 |   rack (1.5.2) lib/rack/urlmap.rb:50:in `call'
 |   /usr/share/gems/gems/passenger-4.0.18/lib/phusion_passenger/rack/thread_handler_extension.rb:77:in `process_request'
 |   /usr/share/gems/gems/passenger-4.0.18/lib/phusion_passenger/request_handler/thread_handler.rb:140:in `accept_and_process_next_request'
 |   /usr/share/gems/gems/passenger-4.0.18/lib/phusion_passenger/request_handler/thread_handler.rb:108:in `main_loop'
 |   /usr/share/gems/gems/passenger-4.0.18/lib/phusion_passenger/request_handler.rb:441:in `block (3 levels) in start_threads'
 |   logging (1.8.2) lib/logging/diagnostic_context.rb:323:in `call'
 |   logging (1.8.2) lib/logging/diagnostic_context.rb:323:in `block in create_with_logging_context'
 | 
 |

Was able to manually download the identity certificate and manifest successfully.

Tried checking Org but ran into navigation bz

Workaround:
1) Manually download manifest for SMA from Customer Portal
2) Manually upload manifest to Sat6
3) Restart deployment

Thom is this something you are consistently seeing?

First question is if this is a QCI issue or is this a problem with the portal being down or impaired service.

Would help to know if this is a consistent issue you can reproduce.

Per comment 5, it seems to be a combination of both

Reproduced again with same manifest...trying a different "known good" manifest

Same issue with "known good" manifest

Tried clearing the cache (browser, cookies)

It's possible a code path is taken that leaks the spinner, leaving it up infinitely. I have been unable to reproduce locally or on the machine in question.

I added the suspected error handler and ensured the spinner should come down + some diagnostics here: https://github.com/fusor/fusor/pull/1084

If this continues to be a problem, we should at least be able to narrow down the root cause with this patch.

NOTE: This may be somewhat difficult to reproduce.

Moving this to post 1.0 ga.

If we are able to identify steps to reproduce we can re-examine for GA.

Workaround with 07/25:
Click on "Review Subscriptions" link on left-hand-side.  This allows you to proceed

We think this has been tracked down and patched with a workaround: https://github.com/fusor/fusor/pull/1197

See related bz: https://bugzilla.redhat.com/show_bug.cgi?id=1371616

*** This bug has been marked as a duplicate of bug 1371616 ***