Moonman,
My dad is running mostly in conventional thur the Lionel powermaster with the option to run in command Tmcc control.
Basically when my dad bought the Mth 9 1 1 Railing engine we found out that when it went over the crossover it would stop. I then tried one of my Mth engines and the same thing happened. We have had the crossover for aleast 10 years and now having the problem.
I will try your suggestions and thank you again for your help. I will keep you posted on the progress. Have a great day.