I built a freight train with 2 F7A and 4 F7B, 93 Clinchfield Coal hoppers and 1 caboose on PS5. It crashed often. After I made a save game it will crash just when I try to load it. It seams that route is not optimized well. And that's why we have 45 car trains there only.
The clinchfield is one of the next routes i plan on testing with a longer freight trains ..I did a 65 car train the other day on HSC used 3 SD70ace s ran it Johnstown to Altoona and had no issues and im on XB series X
I also tested a regular timetable run on HSC since i got my series X i counted cars on the A I,freights that were passing the longest trains ive seen were 70 to 80 or so cars the lengths 45 to 80 is what i counted in various trains the 80 car one was a tank car train and 70 car ones were a double stack 15 sets of 5 well cars , and a few 60 to 70 car coal trains
Tried to do freight formation in free roam yesterday on clinchfield and was a total disater tried a train with es44c4 s then tried SD70aces the ES44c4 wouldnt run the reverser handle would disappear when setting route ..The SD70ace would run fine just the engines but when i tried to couple up to my train got instant derailment at speed of 1 and 2 mph tried at .04 moh still derail ..