I've observed my lines for a while (using this model and the IC2 atm) and on some occasions the trains wait, sometimes they don't. I've seen the IC2 wait for this model; and I've seen it pace through 2 trains of this model that were boarding (all different lines).

I am very happy with these models nontheless, so it's not super important.

that's not model related, it might be related the fact they are long trains but that's pretty much it, it is still using the same train AI. is it occuring on other trains, or same model with different livery (IC2, Nah.SH etc)?

Separate lines with this model using the same platform at a station drive into each other instead of waiting for the platform to be free – could you easily fix that or would that be too much work?

Another great train asset for fun or real cities design.