iBeacon Tracker re-add devices

Hello all,
I accidentally deleted my phone (Android) and my Wear OS watch from the tracker and now am not able to add them again. I did add my phone with this: BLE workaround a while ago. I know that there have since been changes, that would not requires this anymore. My watch however just showed up, after turning the BLE transmitter a week ago.
I deleted them in core.device_registry, but they are not showing up again after multiple restarts.

Any advice how I can re-add them to the tracker?

Thank you!