colored text+Link to screencast of repro steps: +
[Link Removed]
-May take some clicking around even between windows
-Will not save after this
-Does not affect 4.16
Expected: The files will save without errors
Results: The files will not save and there will be an error message
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-50501 in the post.