I’m glad it’s working for you and thanks for finding the issue with devices without polling.
The “Gremlins” may be the group (depending on what the group is doing). This is from another post:
If the packets arrive in order, then all is well. If things get out of order, then the group may be changing things before/after the SmarterBulb app and you get odd results.
I have sets of bulbs in my setup that I control as a group, but always use a virtual switch as the controller. The SmarterBulbs App is always controlling the individual bulbs.
I dont’ have any smartapps that are tyring to set the state of one bulb bases on the state of another bulb.(except for this one).