I just flew a very small thermal mapping project, a flat roof on a commercial building. Into the mission a few minutes I noticed the camera shutter sound stopped and there was an error on the display - "Camera processor overheating, land immediately."  I did that, let it sit for a while to "cool off", tried again. This it failed about halfway through (it was a 10 minute flight). Landed, removed the camera from the M300, inspected it, nothing obvious, watited 15 minutes or so, attached and flew a third time, no issues.
What's odd is ambient temperature was around 30 degrees, F.

Any thoughts, suggestions?

Dennis

Same happened to me once but without any message or warning the H20T went off. Since then ( 6 months ago ) no issue.

FYI, sent to DJI, they replaced it.

I had issues with the H20t when using interval mode with 2 or sometimes also with 3 seconds per picture.  It seemed to have overheated