Max,
Whenever I attempt to move a lashup, neither of the engines move. The horn and bell works, along with directional lighting, but no movement.
At first glance, it sounds like the lashups may be missing the watchdog signal, since that exact behavior is what happens in that case.
Regardless, if you can describe exactly what you're doing and exactly what responses you're getting, we can try to see where is the problem.
I can attest that, during and since beta test, I and the other beta testers found that, aside from minor stuff that was either fixed prior to app release or that will be fixed in first app update, lashups work just fine.