Quoted from Chalkey:He seems to be switching correctly at the bottom but still chomps early in game anyways
I had the same problem with one of my Jurassic Parks, 100% you have a worn wire going to t-Rex. The wire is broken and only break contact when t-rex moves to a certain spot, it causes a momentary break causing him to cough. Normal continuity test with a multi meter doesn’t detect the fault. From memory mine was the white wire, replace the wires connected to t-Rex they just wear out with the movement over time. Very frustrating fault!!