Tilemap lines up in editor, but not game. ;-;

In game everything is offset by one pixel down and to the right, but in the editor it looks fine.

Obviously I can just work around this by manuall making objects in the editor offset, but I'd rather have it just work. :/

Here's the file > mediafire.com/download/1b3g9dibj6bd11a/TILEMAPOFFSET.capx

Thanks in advance.

P.S. Oh, sorry the project is a bit of a mess. The objects and tilemap in question are on Layer 3.

Also it seems the player character is a pixel off the ground, even when I move the tilemap into the right position. ;-;

Okay. So for some reason when I move the tilemap to -16,-16, which is where I had it so I could use it to create a boundary around the edge of the layout, everything gets wonky, including the collision polygons.

I moved it back to 0,0, and now it's fine. :/