2804bf3 created the issue

I use cyberduck for several different sites, at several different hosts and with all of them I have the following problems:
I cannot duplicate folders (I can duplicate files, but not entire folders). I get the popup to rename the new folder, the programm then appears to do something, but no duplicate forder appears.
I cannot rename any files or folders.
The only way I can now duplicate a folder is to download it to my computer, rename and upload the renamed folder.
The only way I can rename a file, is also to download it, rename and upload en delete the old file.
It used to work before, I am sorry that I cannot remember when it stopped working. I hope you can help me.
I found someone who had a ticket with a similar problem (Ticket #6495), but I could not find a fix for it...