@Mathias of course I always double check those. Anyway it was something that I did, I realise now. I like to lower the chassis for boarding and of course I lifted up before start but as it turns out, I didn't lift quite enough to reach middle position and that locks the bus as well!
About other stuff: since the last update many times textures don't load properly, half the instrument board and/or the passenger seats remain a blurry mess. I never noticed that before.
And a request: the ComfortClass has a pretty multi-functional instrument display. It would be nice to be able to switch between functions/modes!