USB Padhack problem

Had a shitty logitec precision laying around and thought I’ld try and throw it in an old case.

The PCB is crazy, and it’s not common ground, but trial and error got me through getting everything to work individually.

Only issue is, Down and Left will not work at the same time.
All other buttons, directions, and combinations work fine.

Anyone have any luck slapping one of these in a box?

Depending on what you are doing with it, check the obvious, make sure your wires or grounds aren’t touching. Try a different ground for one or both of the directions. There might be some rogue solder also touching both contacts.

Post a picture up of the project, it might be helpful to give a better fix.