Question about pairing sensor to application

As for my project, It was working when I finally turned it on today.
Possibly a full turn off / tun on of the sensor had make it popping up.

Thansk for all the rest of the answer, very useful.

Unfortunately I’m keeping on finding problems and issues as I’m re-entering in chirpstack after a project I did 1.5 years ago and I’m findign some differences comparingin to the versions I was using by then.
Also: I’m n00b lol

if you want to follow the list of issues come here