It might be a while before I can jump back on trailmakers but when I do I'll do my best to find spot for you. Shame that it is often impossible to fix, are the devs aware of this issue?

Yes, that can happen when two map pieces are joined at an angle. I've tried to fix it where ever it was possible, but there are a few places (where different pieces meet) where you can get stuck in and destroy your vehicle. That is usually the problem with coliders on enlarged map pieces, and in many cases inpossible to fix. If you can tell me exact places where it happenes I'll give it a look over and try to fix if possible.

I tried multiple blueprints. Didn't happen all the time but it happens when a wheel passes from one map piece to another like a road joint. it is more frequent on pieces that are on different height or angles planes to each other.

I've never had that happen to me. Can you explain what were you doing. Did you try different blueprints?

How do you stop the floor from ripping your wheels off?