[Grandpa]

I've actually been running into these dense-invisible tiles all over the place. Arena battles, the generic PVP map, the salamander dungeon in Kysei; once in a battle and once in the dungeon itself, which kept me from progressing in it.

The odd part is that using the debug tile command didn't do anything.

The tiles seem to vary from map to map but I believe we've had this issue at some point before and it was fixed for a while as well.