I have only one rim for my Clubsport v2.5: the BMW. It disconnects from fanaleds while adjusting the fanaleds app (but it seems fine during races). I've noticed if I leave the rim steady, it will alternate from "ClubSport BMW" to "Clubsport no Rim". Moving the rim seems to reconnect it, but it makes programming it difficult because the LED Hardware window closes everytime it disconnects. I've tried with Fanaleds 2.4k, 2.4u and 2.4v and same result. All the pins appear to be straight and this is a brand new wheel base and rim (2 days old).
I also have a simple programming issue but I will open a new thread for that.