Hey sorry, I remember reading through this and meant to respond. Thanks for tagging me.
Question for ya – do you have this switch paired securely? There’s another thread that has something similar (I think) to what you’re experiencing with Home Assistant:
I know his is an On/Off switch, but maybe it’s happening to dimmers too.
Also, I’m guessing there’s no way for you to swap out the bulb as it looks to be in the ceiling. Sometimes the bulbs can cause this issue as they’re different technologies (ie: MOSFET vs Triac, Leading vs Trailing, etc) and if you toggle things too fast, the MCU can’t keep up with the different technologies. I’m sure @rpulivella can explain this better!
EDIT: One other thing that may be helpful is if you could share a video if the above doesn’t resolve it. I’d like to see what’s going on 