Motors cut out at 85-90% throttle, Bad esc second flight

The only thing that as changed is the new ESC - maybe run the other 3 without this on in the group?

You can also try running just one motor/ESC at a time to see if they exhibit the same cut out issue on an individual basis. This will help isolate a possible total induction issue as a group. If they all still cut out at the same level individually then we know that it is not a group related issue and could be issue with the main controller.

Just throwing things out there to try and Isolate the issue, not sure if any of it will work.

Cheers, Patrick