There is a known issue regarding the HomeKit integration. Since the iOS14 release users have had issues connecting their Hearts to HomeKit. The developers at Animus Home are investigating the issue currently and as soon as that’s done we will announce a more exact time for the new improvement release. Currently the hope is to release this within the days of the new year or somewhere in the beginning of 2021.
Your patience is very appreciated and the whole team thanks you for giving the developers time to work on this.