Post assembly losing jog controls even though connected, noise and unsmooth operation of x axis only

2 problems,

Final stages of assembly.
Gsender/Longboard connects and jogging is enabled. Then after using jog selections, suddenly they gray out but computer remains connected. Turn off the power to long board and then remove usb from computer, put everything back and jogging is again enabled only to stop working a few minutes later.

Reflashed with the 30 x 48 profile… Didn’t improve the problem,

Also y and z axis work well but x axis makes an additional noise, and also stops after making noises. Travel is not smooth sounding. Running in the direction towards the x stepper motor seems to work ok, but messes up going the other direction… Reseated connector, seemed to help, but still not running smoothly like the y and z.