Ok all professional esc gurus, I have what is probably a silly question but here it is...

Using the flycolor 150 (I give this esc high praise), I’ve been using it on 5s with no problems, this morning I tried a 6s in the boat. It was glitchy and then stopped dead in the water. I retrieved and got back to truck to hit the throttle and it worked. I pulled the antenna wire through the hatch (which I’ve never had to do) and it made a few laps before going dead again. This time when I got back, only the rudder worked. Hooked up a 5s and it worked as it should.

The programmer does not have a cell selection, I did not count the beeps the esc emitted, I assume it’s suppose to auto detect and is not?

Running a 1650kv and only had a 440/3 prop on it so I don’t think it was a load issue.

Any advice, I’m confident it’s not a radio issue and is all related to the esc.

Thanks in advance for all opinions or suggestions