Addons in PaperUI empty after upgrade from 2.0.0 to 2.1.0-SNAPSHOT

Last Saturday I upgraded my openhab from 2.0.0 to 2.1.0. I used the backup and restore tutorial of openhab documentation.Backup

I’m running on a Pine64

After startup my Addon section in PaperUI was completely empty. I searched the event.log and openhab.log, but no issues found.

Any idea how to resolve this?

I have the same problem here … no addons are shown at all …