Has any one tried with this with insteon i3 paddles? I only have those as switches which have not flickered, but 2 micro dimmer modules in scenes with the i3s that occasionally do. It's not all the time but I can recreate it sometimes getting the modules to flicker when generating insteon traffic. It usually takes actions that are not normal, eg turning the same switch on/off several times back to back.
It's all the same brand/model of recessed led lights. They're all older, ~5 years old. If the comment level gets high enough, I'll try swapping the problem locations with newer recessed leds.
I believe the i3s are triacs too which probably makes this a long shot, but alternatives to the are being discussed here.