Unable to connect to ccm/bcm

When I first got my 2014 rapid back in July 2023 I could connect to the ccm no problem, did all the tear drop wipers, changedn the one touch indicators to 4 flashes etc. But recently I wanted to see if it was possible to have power to the windows for 10-15 minutes after switching the ignition off like every other vw based car I've owned over the years.

Anyway, it just will not connect, I'm using the hex v2 can with full up to date vcds.

I can connect to everything else as normal.

Is there a trick to reset the can bus or that maybe? Or some other trick to try? Used to work on the mk4 golfs, just enter the same coding and got things working.

I tried pulling fuse 20 or 24? Can't remember but according to Mr Google it was the fuse for the ccm. Pulling fuse 14 has also cured mysteries on the mk4 golf so thought it could be worth a try.

Basically I'm looking for other options other than disconnecting the battery lol.

Ps everythng related to the ccm works fine, windows, mirrors etc.

Cheers