[Alpha] Community-maintained Google Home integration

Hi,

I'm having problems adding devices from Hubitat to Google Home.
I have two Hue bridges and I'm using CoCohue integration.

I'm able to add hue bulb groups.. well eh.. most of them.. but for some reason some of them can't be added.

So.. all groups in this example picture works except Basement (Hue Group). If I choose it and click "Done" -> I get that error in log.

There really is no difference between these groups. Some of them are okay and some not. Any ideas what might cause this?

EDIT: