iOS smb the operation couldn't be completed attribute not found
I have my NAS running and haven't changed a thing. For some reason now I get the error "the operation couldn't be completed attribute not found" when I try to write any files.
I can read files and I can create folders. But I can't copy/move/create files.
iPhone X iOS 16.7.2
iPad Pro 9,7" iOS 16.5.1
iPad Pro iOS 16.6.1
3 devices 3 iOS versions.
iPhone 8 Plus, iOS 15