Just assembled the D1 Pro (5W Red and gold if it matters) and I was impressed with both the ease and quality.

However, I'm getting a weird issue where the over limit alarm goes off even when the laser unit is nowhere near the edge and and even when it's moving on the Y axis (so the laser isn't even moving on the crossbar)

I've double checked the main board connector, the sensor connectors on the cross bar, etc.

Any other clues on where to look?

Thanks!