This is the first time ever I have seen this. When I closed DOpus and then reopened it, the doubles had disappeared.
The screenshot did not show the second occurrence, but i had worked on files in both folders just before, and suddenly, the doubles were there. I do not remember what I did just before, though.
Yes, I certainly will. The problem is, of course, that you do a lot, and then, suddenly, you discover something like this double, and you cannot reproduce what you did before. But I will try.
I restored a file from the Recycle Bin. I had the following folder:
CompilationS & comments
The following folder was created:
Compilation & comments
(slightly different names).
Both are in the Folder Tree and Lister.
Now, this makes sense. There was no folder with the right name for the restored file, so it was created.
What happened yesterday might be related (but I can't remember if I restored files), but in that case, there already was a folder with the correct name, and still, a duplicate was created in the Folder Tree.
Now, there may not be any connection between yesterday's and today's case.