I've followed guide to migrate ConBee II USB stick to HA ZBT-1 twice. Both times result in the same complete failure to control any of my 22 devices, even after leaving it some hours, and power cycling some of the things it controls.
I get this error when it tries.
The visualisation shows the ZBT-1 is green, but not connecting to anything.
As part of the migration I restored the automatic backup that it requested.
ZBT-1's Network Settings has serial port /dev/serial/by-id/usb-Nabu_Casa_Home_Assistant_Connect_ZBT-1_34d58607563aef118ba0331455516304-if00-port0.
But the ZHA Integration summary screen shows what seems to be the old ConBee II Integration Entry. I've tried adding a New Entry, but as usual it tells me I can't.
What could be wrong? NabuCasa support hasn't helped.