Thank you. Yes, there are still some collider issues, the thing you mention is happening because the collider is not out of the collision to trigger a new one and therefore change the state. I will work on that at some point, but since it is somewhat working, there are some other issues prioritised at the moment. I will definitely revisit this whole mechanism, it is planned for later.
Yes, the auto jump. That was in without an option to turn it off, after a comment like yours, I introduced it as a game setting. I also think that it should be turned off by default; platformers where good to me. I might as well set it up so. There are some people which found that very cool, platformers where not so good to them, that is why it is still there.