The first bug isn't really a bug I don't think. I think that's just how the physics work out. I might want to fix it anyways, but I'm not quite sure if it's possible.
Can you explain a bit more about the locked steering?
yea im not sure how it works but on track 4 for sure doing the first jump after turning into it sometimes your steering would barely do anything after landing. this is in the current .2 version but in the beta it feels similar to this but you can turn slightly more but it is a lot less than in .2 version