I've tried everything but couldn't, so I hoped you guys would fix for me and Hideliet did it.
Thanks Hideliet!
Since I can't post images, at least the route 120 big grass barriers are pretty easy to notice, I have played the original games and we couldn't use bikes inside the grass but we can pass through them, which isn't happening, like I said, we can't enter or exit by the lower/south parts of the big grasses because of a invisible barrier, so we are forced to existe/enter from the upper and side parts of the grass.
Barrier should be there. This isn't a bug.
Bug in Meteor Falls was fixed. Thank you for raport :)