[Data Files] Cannot use own filenames anymore after upgrade

Today i upgraded manager. I had my data files named (instead of the guid) on my dropbox.
After the upgrade, manager defaulted back to an old list from .local/Manager.
I cleaned up the old files.

Now here’s my problem. I can only “Import” my existing files, which causes manager to save a new file (in dropbox) as [guid].manager.

The “open business” feature seems to be gone and is replaced by import.
Why is this, and can this be changed back?

Please read this release notes

And this topic