Habpanel lost after upgrade 3 > 3.0.1?

A while ago, I’ve upgrade from OH2.5 towards OH3, and I lost the Habpanel. After exporting this on the OH2.5 installation, and importing it on OH3, it was back again.

Yesterday, I’ve upgraded from OH3 to OH3.0.1, and just noticed that the HABpanel is gone again?
Any idea what I’ve done wrong? Why the panel keeps disappearing? And is there any way to have the panel back from files/backup/…? Since some things where changed from my old 2.5 config. :blush: