OH 3.2 User interfaces are not loaded

Lately the UIs that are entered in addons.cfg are no longer loaded. What do I have to change in addons.cfg so that it works again?

# A comma-separated list of UIs to install (e.g. "ui = basic,habpanel")
ui = basic,habpanel

If that worked before and now it doesn’t any longer:

  • has there been any change that you applied lately ?
  • are there any error messages in /var/log/openhab/openhab.log ?

Repeated reboot fixed it .