There are many grounds. If that is the new V5 3PDT wiring board there should be a +9v symbol silk screened directly below the pad. If it says 9v then it is not a ground.
The old v4 boards show all three Ground pads labeled and grouped together.
For convenience and much neater wiring options as well as the lack of a need for 6 overall Ground pads we added another 9v pad (square) to the left side of the newer v5 boards as seen below:
At any rate it is an easy fix since you still have spare grounds (G) to use.