Motors wont spin individually

In Q ground control when we test each motor individually motor 1 and 2 spin at the same time. We have checked the wiring to the motors and they look correct. So we were wonderings if we could have some suggestions on what it could be?

Most definitely is an ESC wiring issue; triple, quadruple check this section of the documentation. FC to ESC Wiring | Bell AVR Documentation

I just checked and it looks correct so what else could it be?