Nextcloud Clients on Linux and Windows: Conflicted Versions


I am using Emacs Orgmode for task management. The corresponding org-file is saved on my nextcloud so I can sync it with all my devices. I have a Desktop PC running on Windows 10 and a Laptop running on Ubuntu.

Now every time I edit the file on Ubuntu, sync it with nextcloud and then sync it with Windows, I get a conflicted copy on Windows. I didn’t do any changes on the Windows File version in the meantime .

Does anyone have an idea what the reason could be?

Thank you!