Problem with Atlas Y turnout

[RobertInOntario]

Rob,
is this the case what is happen with the older rolling stock?


Peco Code83 US #8 turnout and Electrotren works standard set of wheels, pizzacutter type.
The gage will detect this too. There are the 2 small grooves on the left side lettered "WHEELS".

Thanks ... maybe. I might take some pics or videos.
Rob