Go-Tcha original and ranger not working with Android 15 (OnePlus12)

Go-Tcha original and ranger not working with Android 15 (OnePlus12).

The phone detects the Go-tcha device as it ask permission to connect a Bluetooth device, but after I Agree, nothing happens. The connecting icon rotates, turns green and immediately disconnects. Both Go-tchas still work with older Android devices. I have tried to disconnecting them and rebooting the phone. And also first added the go-tcha as a bluetooth device and then adding it tho Pokemon go. Nothing helps.

Any ideas how to get them work, or as usual just wait for the next update and hope for the best...?