[sciurius]

I do try to fix file paths and strip unique ids from filenames [...] I wouldn't expect it to be random... Is this something you can easily test again?

Not easily. But if I understand correctly this applies to a numeric postfix, not a prefix.

As for your previous post, you may be right - if files are locked, that certainly would cause problems with library backups. I've seen files get locked before that weren't released until my tablet was restarted (so something was wrong at the OS level).

Would it be possible to detect this, and issue a warning?
Also, often I get then feeling that it is MSPro itself that keeps files locked (in another thread, maybe?). When MSPro cannot display a file, and I switch from MSPro to another app and back again, the problem is usually gone.