Have been connecting Mission Planner to Cube via UDPCI for months all is fine.
Same case for Herelink transmitter.
Randomly Herelink transmitter is not downloading parameters on start up.
Under voltage was the air unit itself, i had a buck down booster supplying it so instead of 5V i turned it up to around 7V which worked, however does heat up more now. Tho it doesn’t explain why it was working fine at 5V.