Strange Problems on Horseshoe Curve...

ok guys and Gals, I've got a real brain buster and was wondering if anyone else has experimented with this and encountered this:
For experimenting purposes, I went about and have tried to create the infamous three and four track meets that could and occasionally did happen up at Horseshoe Curve. I'm following PRR-Specific Rules (also something breached apparently with the free roam scenario that has you rail-fanning the curve).
in the included image, a triple meet is about to occur. What isn't pictured is the said "Consist tilt" derailment that occurred directly after the passenger train got beside the coal drag heading upgrade on track three.

Consist excessive stretching...

Derailment (shown for illustrative purposes only)

Anyone encountered this? Any easy solutions to the Consist tilt derailments? (NOTE: happens on both Legacy mode and in TS2012 mode)
Thanks in advance for your insights / opinions...
For experimenting purposes, I went about and have tried to create the infamous three and four track meets that could and occasionally did happen up at Horseshoe Curve. I'm following PRR-Specific Rules (also something breached apparently with the free roam scenario that has you rail-fanning the curve).
in the included image, a triple meet is about to occur. What isn't pictured is the said "Consist tilt" derailment that occurred directly after the passenger train got beside the coal drag heading upgrade on track three.
Consist excessive stretching...
Derailment (shown for illustrative purposes only)
Anyone encountered this? Any easy solutions to the Consist tilt derailments? (NOTE: happens on both Legacy mode and in TS2012 mode)
Thanks in advance for your insights / opinions...