Hello mieruko, could you share a screenshot? so I can see what’s happening. :)
Hello Mieruko, don’t worry I can fix that and you don’t have to make any changes in your project besides updating the tileset.
Edit: It has been fixed, download the Fantasy Dreamland World.zip and grab the new version of the “FDR_Interior_A4” tileset, place it inside your project tilesets, it will fix your problem! :)