Created attachment 1324466 [details] see ui.log attached - line 703. Description of problem: preview/commit of snapshot brings Uncaught exception: com.google.gwt.core.client.JavaScr iptException: (TypeError) : H8(...) is null Happens a lot but not 100% consistent scenarios. Version-Release number of selected component (if applicable): ovirt-engine-4.2.0-0.0.master.20170820180837.git59243e9.el7.centos.noarch How reproducible: happens a lot but not 100% consistent. please see the ui.log attached Steps to Reproduce: 1.create VM from template . enter snapshots tab. 2.create snapshot. Preview. Compute. 3.go to tasks. Actual results: the snapshot is restored but the following error has been brought: Uncaught exception occurred. Please try reloading the page. Details: (TypeError) : H8(...) is null. Please have your administrator check the UI logs Expected results: No exception Additional info: see ui.log attached - line 703. (there are a lot of such exception though the log)
*** This bug has been marked as a duplicate of bug 1484828 ***