tested but i dont get the scaled unwanted zoom by changing the float value
float 1
float 0.5
BUT when i try to add the texture from here:
with a bit cropped image of itself, the image changed
so i assume you will need to have both image of the tile and the input texture to be exact same resolution to make it work
testing it on real tilesets (GIF):
disabled the Use Texture Padding
seems to have resolved the random scaling, but there’s still a bit difference in zoomed
Edit: changing the tilemap Texture Filter to Nearest now fixed the “a bit difference”
but really disabling the Use Texture Padding should fix your issue