Steam Bnrdzf 483 Millennium Scenario: Throttle Percentage Power Not Working

While playing the Bnrdzf 483 Millennium scenario, I noticed an issue with the control car’s throttle.

The throttle percentage power appears to be invalid. I can only control power by increasing or decreasing the throttle step by step. Once the throttle reaches the percentage-based region, it has no effect at all.

The power meter seems to top out at10 kN and does not increase beyond that.

I also noticed that the BR 111 locomotive in this train is unusable: there is no power in either cab, and the screen does not light up when the reverser handle is inserted.

I have not encountered this throttle percentage issue in Timetable mode or Free Roam mode. So far, it only occurs in this Millennium scenario. I suspect the control car used in this scenario may have been modified.