You experience strange problems on leaving a task, producing the error message:
"The desired action cannot be processed! The currently opened segment has to be saved / closed first."
Or if you receive a JS crash window on editing a segment, the following steps might help.
The problem is generally fixed with Release translate5 - 5.0.10 in issue TRANSLATE-2218 and TRANSLATE-2241. If this version is not online yet, the following workaround will work:
The user has to reset his layout: