hey ya @Olivier.
ran into a couple of issues…

2 out of 3 norns gave me an error when trying to update through maiden.
using maiden: i had to delete the old install and then do a new install of 3.0
other problem is with audio play through.
sometimes audio will not play through norns until i get back out of recording in Compass.
note: i’m recording mono signals into Compass. i did set the mono setting on the parameters page)
on one norns…it just will not play audio through at all.
in fact i was recording into it and it wouldn’t produce any sound even after recording.
(i double checked levels on the main screen to see if there was audio coming in)
i originally recorded with only “}” in the sequence and i turned off the “softcut slash” function just to make sure it wasn’t in the sequence as well once i randomized things.
rebooted twice and finally got some audio playback but still no monitoring of the incoming signal.