The bug has appeared again some days ago. The bug seems to have "come over night". I had normally shutdown the system and the next day after booting the panels were missing. Entering "xfce4-panel &" has restored the panels again.
The bug has appeared again some days ago. The bug seems to have "come over night". I had normally shutdown the system and the next day after booting the panels were missing. Entering "xfce4-panel &" has restored the panels again.