It's still broke, regardless of loco. Tried with both Traxx and Dragon 2.
When arriving at Pabianice I am told to change cabs and radio back. But at that point I have not yet gone past the exit signal, which stays red forever. So changing cabs and going in the other direction would just keep me on track 1, never reaching wagons on track 5.
Still, changing cabs and calling dispatcher triggers no reply, as you'd expect.
It's a shame really, that so many of the DLC scenarios just don't function. I get it's hard to keep them up to date with updates, but... I mean.. I paid good money for this content.