extruder reversing issue

Extruder motor runs in opposite way, even with the extrude “reverse command” the direction is not changing.
On a sudden moment te problem seems to be solved it self,
This is not constant, and after starting up again, it can happen, de motor suddenly runs the wrong way again.

Imported from wikidot

Please try another motor on this stepper motor driver.

This could be a problem with your connector.