@emil It works! I don't know if it was significant or not, but I logged out of the Flic App on all devices, and logged into another user account. Then I reset the Flic hub, first by pushing the reset button for about 13 seconds. The orange light went out completely. Then I power cycled it, and held the reset button for another 4-5 seconds until it started blinking. Added Flic 2 and enabled Homekit support. I don't know what made it work this time, but I suspect that the new user account forced the app to ask for new network permissions. At least that's my qualified guess 🙂
Andreas