HomeKit bridge still contains deleted devices?

I have a phantom switch:

This switch no longer exists in my HA install.

I’ve deleted and readded the bridge on my iPhone but it’s showing a switch that no longer exists in HA. There’s no way to delete a single device from the Apple Home App side (why?)

The only similar topic I can see is Syncing devices with HomeKit Bridge

Does anyone know where this is being picked up from and how to fix it?