Check continuity of the row/column wire (Green) of each of these switches. Sounds like a break in the return wire. The Slam Tilt has its own return wire but those three switches are daisy chained.

Gday Nino .

These switches are all on row 1 . (white/brown wire) 1st thing I thought was a break somewhere on this wire, but have continuity between the last switch (61) and pin 1 on the connector that plugs into the CPU