I've looked all over the forums and I have seen similar issues but none seem to address my current issue. I'm not new to making tilesets, and I'm currently working on a project where I have made two already with no issue. To clarify I'm making auto tiles, but I'm using the pre existing default document to place them all on file. This has perfectly fine for the first two tilesets. But now the rest of them keep overlapping each other regardless of how seamlessly they match up in the document. I have attached some examples below. These are the tiles that aren't working: At this point I don't even care about the inner corners. I just want the actual tiles to work like they are supposed to. I don't even know why it suddenly started acting up. It's been driving me crazy and it's really frustrating. What changed? I didn't alter anything. My Photoshop has 'snap to grid' to ensure accuracy. And when I test it out within the program itself it tiles CORRECTLY here in RPGmaker the overlap is so extreme that it straight doesn't make sense. And it all just happened suddenly. For reference here is a much heavier detail oriented tile that doesn't do this. And I did nothing different with it.