I have double checked all wiring and verified the switch works with a multi-meter. during the auto-home sequence the Y axis just keeps trying to push past the end-stop with the carriage pushing full force on the movement limit, after 3-4 seconds it does the x-axis correctly. I tried reversing the x-y connectors and now both x-y are doing the same thing so I know they were wired into the correct positions, The pins seem to be tight when pushed onto the rumba board. I uploaded a video of the issue (it's in a .zip file) I verified wiring with this image "Rumba_Pro.png" from the build wiki Added a picture of my wiring in case it helps I used the "move axis" function and when I move X-axis and trigger the X end-stop it would prevent the X-axis from moving in one direction. When I move Y-axis and trigger the Y end-stop it moves in both directions (switch is not seen). I put Y-end-stop switch into the X end-stop position on the Rumba and and when I move X-axis and trigger the Y end-stop it would prevent the X-axis from moving in one direction. This means the switch itself is not the issue but something perhaps with the Rumba board itself?