HI @onky!
Thank you for contacting NXP Support!
I am not able to test now in Linux Host machine, but using windows 11 with teraterm I am not having any issue.

Can you try using screen instead of minicom?
If it is possible try using windows machine too, to discard any malfunction of the baord.
If the problem persists in other machine , please let me know.
Best Regards!
Chavira