When mapping in VX Ace, it lets me walk on top of interior roof tiles as in tile spot A4. Originally it wouldn't, but as time goes on and I finish a map, it suddenly lets me walk on top of A4 tiles that, in the database, are marked with an X.
I'm not sure why since I haven't touched the tileset priorities between the time I began mapping and the time I finish.
I have a few Yanfly scripts; however, my lost demo game Etherworld used the same scripts and never had the walk-on-A4-even-when-priority-X problem, so I'm sure it isn't that. The Yanfly scripts I have don't modify tilesets to my knowledge either.
Anyone have any suggestions as to why this is happening.