Hi, first thank you for this awesome mod, i enjoy playing with it so far.
I encountered a little bug when it was time for an research tree upgrade (the one which require red green and blue sciences packs) to get more speed.
All locomotive were upgraded but all rotated too ! So all trains down and i had to manually sort all the mess since the game didn't allowed me to simply rotate them.
Don't know why but all my grouped trains schedule disappeared too. Hopefully i didn't have a lot of trains, like 12, but it's a pain to redo all the different schedules.
Hope you will find the issue :)
Edit: I forgot an other issue, when placing the locomotive sometimes it won't be placed as you want.
You hover the rail placing the loco facing right for example, waiting it to be constructed that way, you click and boom, it's facing left for no reason.
You should make this mod to be added as new locomotive, not replacing vanilla ones because once you get past red green science vanilla loco are better in speed, consumption and fuel slots. Besides that very early game it's cool to have your mod.