Xbox Series X Objective Not Advancing In"can't Make Your Mind Up?" Scenario.

I'm having trouble completing the Midland Mainline Class 158 scenario "Can't make your mind up?".

The stop marker at Spondon not only seems to be in a strange position, but stopping anywhere along the platform doesn't advance the objective, and thus unloading passengers doesn't work.

This is after the large update today, though I don't know if the problem was already present, or introduced by something in the patch.