iOS update 13.5 breaks all connections

[jeroen1973]

After updating to iOS 13.5 HomeKit can’t connect to homey anymore. All accessories are not responding. After removing the bridge and trying to add it again in homekit it says ‘adding failed’ Restarted homey, reinstalled homeykit, turnd off for 10 min....all failed

[robertklep]

Only my iPad is running 13.5 (iPadOS) at the moment, and that seems to be working fine.

Try doing a full reset (Homeykit app settings, "Settings" tab, "Clear HomeKit storage and start over") and restart the Homeykit app.