That will 99% be the lower hall sensor has been knocked off the side ram. You can see it with the roof in the down possition. A small 1cm square block will be dangling loose on the outside of the left hand roof hinge/ram. Possibly knocked off during the motor relocation process.
You'll need to lift the Ram out and super glue it back in place. I've mended a fair few in my time when relocating roof motors