Since yesterday without changing anything on my Nextcloud installation, I found all my folders duplicated with capital letters.
I don’t know how it came and what I have to do.
Any idea on what is happening?
I know this is a really old question, but I found this while searching, as I had the exact same issue.
why this happens, I do not know, but when checking the server, there weren’t any duplicate folders, only nextcloud telling me there was.
In any case: the solution for me was to re-index all files.