I cannot seem to get dynamic brakes to work in Peninsula. I know how the work - have been using them on SPG no problem. Waited the usual 10 secs in set up (even waited in idle for 10 so 20 in total). The needle moves to the yellow a tiny amount but if I apply more dynamic braking, nothing. No amps, no speed reduction. Is it a known bug or am I missing something that's different on this variant of the loco?