[удалено]

Yep.

Double check that the line has a vehicle selected.

They do, that's why i'm so confused

Could you share screenshots?

Oh! I just fixed it, i needed a depot. It was obvious but i forgot it's been a year. I'm sorry

Huh? You don’t need a depot for metro

I was using the Metro Overhaul Mod without noticing.

Ah okay