It's Saturday and light groups are drunk

So I have setup some light groups in ZHA settings (my ZHA is using Conbee2).
I have triple checked that the light groups are set up correctly. However when I turn on a light group it also turn on a light that is not part of the group. Same happens when I turn off a group, it turns off the same light that is not part of the group.

I´ve also noticed there are some phantom groups that are being created.

Any idea what is going on ?

So a day later, nothing changed. So I went through every group, adding and then removing the lights that was not a part of a group but still turned off/on when using the group. And after that groups work as expected - hope it lasts.

Because one issue remain, ghost/phantom groups keep popping up and they are completely random.