I have several Matter devices. I originally paired them to Apple Home then added to HE. At some point, I deleted them from Homekit and then added them in using the HE Homekit bridge. All worked fine and have for some time.
Last night we had a brief power outage which I was unaware of until I got up this morning. HE Hub is on UPS so it stayed on.
Had some issues controlling several Matter devices this morning. I have a zigbee button that I use to control some things. One button is used to turn on a lamp on a matter plug. It would not turn on the lamp. Events show the button was sending command to lamp. I finally told SIRI to turn on the lamp and it came right on. Then the button worked. I then had the same thing happen with several other devices. SIRI control worked fine, but not from HE.
Just kinda wondering why as SIRI has to go thru HE to control the device anyway, or at least I assume so..
EDIT: Just found out it is also a couple Zigbee devices also.
UPDATE: Kept finding things not working. Re-booted hub and everything started working like it should.