There’s an erratic communication problem with my O gauge Amtrak 50th anniversary engine.
I thought that I had it cured by cleaning the rollers, but it keeps happening: sporadically, although horn, bell, crew talk, etc. all work fine with the orange Lionel 3 train universal remote, or alternatively with the Lion Chief app, the engine does not move with the throttle engaged.
At times when it is working, after I bring it to a stop, it won’t restart. Also, sometimes, but not always, shutting off the track power and the remote and restarting both is successful.
Is there a receiving unit that I can check myself? Anything else that I can evaluate?