DRV8825 running Marlin firmware

Hi there im currently working on a issue with some DRV8825 stepper drivers. Im building a Ultimax 1.5 printer and have sourced the Controller separately from eBay as you do. The board is the standard Ramps Arduino combination but i have chosen to go with the DRV8825 over the A4998's. Now when i flash the controller with marlin it will only step the motor in one direction and trying to go in the other only results in a but of buzzing from the motor. For prosperity i flashed the controller with the latest repeatier FW and it works. Super confused by this i know there completely different FW's but why one and not the other.

Just a quick update to this it appears that after re flashing the controller with the marlin FW it works. Im wonderiing if the was some corruption in the fw. If i connect it to a computer and look at the commands coming back it looks as if its hitting a software defined end stop and thats whats stopping it from spinning in the opposite dirrection. As im still testing on the bench not on a machine there are no physical end stops connected to the board.

Im wondering if this has been the issue all along.

It might be tripping on line noise. It happened to me when I was setting up the electrics on the cnc controller (using the A4998 stepsticks) I twisted the motor wires in a 4way plait and helps, along with some old baluns from an inkjet printer I ripped apart for bits. Make sure you also have all your grounds connected to the same rail...not all earths are created equal and can float above and/or below 0v which can also create false triggers.