As title, when boost (the +20km/h voucher thing) is applied to a train, the timetable calculator/ schedule shows it has a ridiculously high profit/h.
(E.g. A 120km/h train originally have a profit of 2M/h, after applying the boost it "shows" 8M/h)
The roundtrip time is also grossly wrong. (E.g. A 120km/h train originally have a roundtrip time of 24min, after applying the boost it "shows" 7min).
This should be reproduced easily as it happens every time , on every world I play, when the boost is applied
(Use multi-slot pax trains to feel the wildest bug result)
Note that speed worker works properly.