Hey again!

I am having a passability issue while trying to make interior maps. For some reason anything I place below the third layer doesn't acknowledge the passability settings and allows the character to walk anywhere. I've already looked into the passability configuration in the database. Everything is set up as it should be.

For example, a ceiling autotile I'm using... It's set to 'Square' which allows passability for the top row only. It's priority is set to 1 so that the actor can walk underneath that top row. This functions as it should... on the third layer. But if I were to make the ceiling on the first or second layer, it allows the actor to walk underneath the entire ceiling, across the empty portion of map.

It's the same with walls. Placing them on the third layer makes them impassible, but if I were to place the walls on the second or first layer then they somehow become walkable. But in the tileset tab of the database they are set to 'X', which makes them unwalkable.

Passability works just fine when I place the same exact tiles tiles on the third layer that won't work right on the lower layers. But as you may already know, that makes it extremely difficult to layer the tiles the way they should be with only one layer to use, forcing me to make a ton of events in place of where tiles would sit over others. And, obviously, I can't layer events over other events, leaving me with only two layers to use for the entire map.

Has anyone else had this issue? I've made quite a few maps already and haven't had this problem. The only difference is that the maps in question are using an interior tileset whereas the maps I've already made that function correctly use an exterior tileset.
There is no real difference between these tilesets, As far as I can tell all that changes is the images in the tilesets themselves.

What could be causing this layering issue?
If anyone knows why this is happening, or may have a solution for it, please let me know.

Thanks in advance!

Is this happening on all maps, with all tilesets, or just with one tileset, on one map?

Also, is it an imported tileset, or a standard one?

So far its been doing that with the last two maps I've made.
I am only using two tilesets for the entire project.
One contains nearly everything RTP for exteriors, the other for interiors.
Yes, they both had to be imported.

The first set interior maps I made (dungeon) use the interior tileset, and I never encountered this issue, as its almost all on the bottom layer and works just fine.
But these two new maps I'm working on, are using the same interior tileset as the dungeon maps. The only difference is the tiles I'm using, because these new maps I'm working on are the inside of shop buildings.
But it doesn't seem likely that the problem is with the tileset itself, because when I place everything on the third layer it processes just fine.
Only tiles placed on the second or first layer don't seem to correspond with the configurations in the database.

So its just the one tileset and only on the last couple of maps I've made.

Do you know what the problem might be?

I had the same endless problems on one particular map, no matter what I tried it didn't want to know.
Ultimately I made a new map using the same tileset, and it worked fine.
Maybe its worth reimporting the same Tileset and trying again.

Are you using the blank square at the very top left of the map? The others make things passable occasionally. And I'll assume you have the tiles set in the database already. If you didn't use that top left square, try redoing that complete ware around where you didn't use it, using it this time. Only solution and problems I would know of, sorry if it doesn't help.