Steam Seh Invisible Train Parts Of Ai Trains

In a number of drives you can meet AI trains with invisible coaches, leaving a gap in the train.I beleive you can reproduce it.

Example is service 1A95 departure 19:52 between Strood and Gravesend.

I have no picture, it happens a bit fast.

 

It seems to affect other routes as well.

 

Just ran the line... no missing carriages on any of the trains
Between Strood and Gravesend I passed a javelin and a freighter, both contained everything they should

 

I have never seen it at other routes, but several times in SEH. I am to lazy to try to replay and see if it happens very time.