So, i disconnected all the white-yellow wires from each item in line and these are the results:
Left sling switches = Ground short row 4, top right ramp up error
Plumb bob = Ground short row 4, top right ramp up error
Launch ball = Ground short row 4, top right ramp up error
Trough 4 balls = Ground short row 4, top right ramp up error
opto castle 2 = Ground short row 4, top right ramp up error
Left ramp score = Ground short row 4, top right ramp up error.
As you can see after disconnecting the lot and I still get the ground short, top right ramp up errors.