Rpg Maker Developers Group

So I have been working on my RPG Maker project for a few weeks now, and a new problem that I cannot figure out has surfaced. Up until now, everything was working just fine, however, yesterday when I was testing a map, I noticed that for some reason or another, my characters are able to walk up a ledge if it's from the side. I have included a screenshot of what I am talking about.


I did everything I could think of, starting with changing the passibility of the tiles in the Database. However, when I did this, it made that entire tile, obviously unable to be walked on. But before yesterday they were walking that tile just fine, without going over the ledge. So my question is, why is this starting to be a problem, and how can I fix it? Normally I wouldn't think too much of it, however being able to go up those cliff sides gives players major shortcuts and takes them to places that they were not meant to go.

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