Aeotech Minimote - Pairing multiple times?

I’m resetting up my system (again) and I cannot get my minimote to pair.

What I thought are the steps (HA in ‘add secure node’, please the Join button on minimote) doesn’t properly add the device.

Any idea what I’m doing wrong?

It seems like it’s adding devices but…

After trying multiple times, I now have 6 more Unknown nodes that are sitting in my config. Cannot seem to remove them. Tried adding as a normal node. Seems to do the same