I have about 25 motion sensors and 5 dimmers, with lights I had 49 devices on the hue bridge...everything was smooth, until hue released their adaptive lighting update...after that, any motion sensor that was triggered would crash on homekit, basically the bridge was constantly disconnecting from homekit non spot...so for the last 5 days I have gone into troubleshooting mode and it has been BRUTAL! first thing I did was get a new bridge and moved all the motion sensors to the new one, figured maybe I just had too many devices on the 1 bridge, think max is 50...issue still there, it made homekit unusable...once the motion sensors crashed homepods would crash, so no voice controls...everything however works on the hue app perfectly...removed all the hue devices from homekit everything works no problem, put them back everything crashes...removed just the motion sensors, everything works on homekit again with just the lights....signed out of icloud issue still there...luckily I have echo shows all over the house for video calling, so I was able to connect both my hue bridges to that and now all motion sensors work without crashing homekit...one thing I did not do was nuke my homekit home, it’s too big and I have too many devices connected, f! that...have garage doors, blinds, 9 homepods, 7 apple tvs, all hue lights, 15 arlo cameras, rachio sprinkler, abode security system, 30 wemo plugs and switches....so basically right now homekit is running smooth with no hue motions connected, those are now connected to alexa and work fine...the dimmers still refuse to work they are connected to homekit but triggers don’t work, wemo light switch triggers do work...if Alexa supported hue dimmers I would just move them over...what I fine suspect is that everything works in the hue app, light, dimmers and motions...lights and motions work in alexa...but dimmers and motion no longer on homekit and now suddenly they say “hey we have a new dimmer coming out” yeah right! I figured they were just about to release a new bridge, like I said watch that is about to come out