Hi @Filip-Slezak
As far as I understand, FCv2 does indeed support CAN with no issues that I have heard of.
I'm not able to help with SW issues, so please review these pages, and if you get stuck, please try to post a new Forum topic so our SW engineers can see it as a fresh case and respond accordingly.
https://docs.modalai.com/flight-core-v2-user-guides/
Thanks!