Wine : unable to write a file (MusicBee)

I've been trying to use MusicBee on my arch with wine, and I'm facing a weird problem I didn't expect. When I try to create a Library (which is basically writing a file and creating folders as far as I know), I get the following error : It doesn't seem like wine limits access to mounted drives, so I have genuinely no idea what the problem is. Does anyone have any idea? EDIT: I went to the path to check 3 things : - I can write/create files there through other apps (file explorer for example) - The problem doesn't come from having spaces in the name/folder (tried with underscores too) - MusicBee/Wine actually manages to create the folder and a .ini file inside of it, so the problem comes after that, which is even weirder Other people seem to encounter this problem on full Windows, so maybe there is a solution I haven't found yet. https://getmusicbee.com/forum/index.php?topic=28550.0