I’m using a Dell mini computer for HA. Installed Bluetooth StarTech 4.0 adapter from the HA know working adapters list, all went well. Installed three updates one for what I think was for SSH not sure, I don’t remember the second one followed by HA 2023.3.1 and after restart got the following error: “Retrying setup: Bluetooth adapter None with address XX:XX:EC:06:XX:X5 not found”, (not real mac address). I’m new to HA and thinking if I deleted the adapter, plus reattaching the USB adapter as well restarting HA, HA would see it, but it was never found.
Solved. Disconnected the Bluetooth adapter, rebooted system, reconnected the Bluetooth adapter and it was recognized.