I fixed it but it was not what I was expecting. I have two Eve thermometers (one inside and one outside). They were not connecting. Actually nothing worked on the Eve app. (see Heatmiser in the next sentence which appeared on the Eve App but never connected.) I also have a Heatmiser-controlled central heating system with lots of lights attached to it. They too didn't connect in the Home App but they did work in the Heatmiser Neo app. I restarted the Heatmiser router and bingo it all come back (Home and Eve apps). It also connects almost immediately! I have update many AppleTVs over the years (I have 3 right now) and have never had the problem I described above. However I never had HomePod Minis before. Anyway, all I can suggest is that if there are any HomeKit routers on your system, try restarting them. Don't really know what else to say but if you do, I hope this helps. Bill