Yes I had seen that, and that is close to my issue, but setting the other group to ETTL doesn't work at all. This was from over a year ago, and months ago people were complaining, but nothing from Godox on this. That sucks, but it is a pretty minor thing I guess. I will just remember to turn off battery power to the flashes if I need them off when using the transmitter.
EDIT: Per the help of another member, the work around for now is to half press the test button after making changes to the groups on the XTR16s receivers. That will resync the settings over, and then the AD360 will set itself to the OFF setting when disabling that group. Now to test the other issue of being able to fire the AD360 no matter what group it is on. Still a bit of a hack, because I don't have to do this with the flashes.
EDIT: The other issue is still there. If the AD360 thinks it needs to fire, it doesn't matter what group the XTR16s is, when I fire the X1C, the streaklight fires.

