The Y axis on my Anet A8 will only move forward away from the motor, I checked the position of the motor, cables and everything is set correctly. This all started when in the middle of a print the Y axis went all the way towards the front and got stuck there. I reflashed the software and was able to do some small prints but the issue returned. The Y axis motor will work normally when plugged into another port. Could this be a mainboard issue? By the way I am running Marlin software in the printer.