Keep Hue Bridge Pro from scrambling HomeKit rooms

A Bridge Pro migration can look successful inside Hue while Apple Home slowly turns into a single crowded room. If lights keep reappearing in the room that contains the bridge, treat it as a sync-state problem between Hue and HomeKit rather than a reason to rename every lamp again each morning.

Stabilize the source of truth

1. Take screenshots or notes of the intended Hue rooms, Apple Home rooms, groups, and automations before changing anything else.
2. Confirm the Hue app itself still has the correct room layout. If Hue is wrong too, fix Hue first and wait before syncing Apple Home again.
3. Temporarily pause or disable Apple Home automations that depend on the affected rooms, so a bad sync does not keep firing broken scenes.
4. Update the Hue Bridge Pro, the Apple Home hub, and the iPhone or iPad used for Home setup, then restart the bridge and Home hub once.
5. Use Hue's Apple Home sync flow only after the Hue layout has stayed stable. Avoid repeatedly deleting and recreating HomeKit groups during an active resync loop.
6. If the same room collapse returns, consider removing the Hue bridge from Apple Home and adding it back once, but only after documenting automations you will need to rebuild.

Protect the everyday lighting state

Keep Hue as the device owner while this is unstable, and use Apple Home for the automations you actually need. If Rhythm is managing those Hue rooms, let it restore the normal Day and Sleep feel after the Hue/HomeKit mapping is healthy again. Rhythm can keep a reachable room comfortable, but it cannot prevent Apple Home from receiving a bad room map from a bridge sync.