Hello,
I just set up my Bachmann ho scale Pacific flyer under the tree.
Problem is,  when  the locomotive comes around the rerailer piece, the front wheel often get derailed. This is more common at moderate and faster speeds, but I can observe it slightly at very slow speeds. Pulling cars behind it also does not seem to help, but also doesn't seem to have a significant effect on the situation.

Any ideas how to help keep  the wheels down on the track, especially in front?
Thanks for your help!