HomePod mini not reporting Temperature or Humidity 18.1

Just in case anyone is still having problems with HomePod mini not reporting temperature and humidity

I have had the same issue……tried all the resetting and removing and re adding….works for a few hours then drops again

I have an apple 4k tv unit and 2 HomePod minis, all 3 were available for being home hubs or bridges…..set to automatic……the 4k tv being selected…..I tried switching off automatic and selected a HomePod as the hub

All has come back working with temperatures and humidities !