I went through that checklist and I have checked the diagnostics window as per its instructions. I find this error that hadn't showed up before I reimaged:
Code:
ERROR <Code> -44075 occurred at "Tester" in the VI path: Robot Main.vi
<time>00:17:00 01/01/1970
FRC: The loop that contains MotorControl SetOutput is not running fast enough. This error can occur if the loop contains too much code, or if one or more other loops are starving the MotorControl SetOutput loop.
"Tester" is currently the name of the Jaguar.