I've checked them all, it's almost like there is a pixel of space between each new sprite i put down.
I am putting them down as sprites (so i can set collision polygons)
But before this, i was putting them down as Background Tiles, but i still had the same problem. Creases in between each block i put down.
if i put a block down and activate the grid and make it bigger, it's fine, no spaces in between blocks.. only when i put a new Sprite or Tole down it doesn't completely fit seamlessly.
Is this a feature maybe just to let you know they are seperate blocks.. i'm really not sure.