Unexpected error is keeping you from deleting this folder

Is this now a design decision or a bug to be fixed? Another thread seems to say it was a bug that was already fixed. However I am also experiencing the problem. I had seafile connected to my laptop and everything was fine. I then added a desktop to the mix with both machines sharing the same seafile repo, and now the new desktop has trouble deleting files. Sometimes it works when you clear the files from being stored locally. Other times it doesn’t.