The text of message is
Quote
"Wheel axle data faked based on 2 bogies for E:\Bin\Open Rails - US West 1930-1952\trains\trainset\SP_4-8-4_GS6\spmsts4460-2.wag"
A search of old posts reveals this cropped up in 2015 and after much discussion of whether the problem was with the model or code was thought to be fixed by Ed K., tho what was done was beyond my understanding.
So... why did this error message pop up now?
p.s. The matter of the locomotive not running is possibly due to something else but the message in this post was completely new to me so I thought I'd ask about it.