Terrain Set not functioning how I expect it too

Godot Version

4.2.1

Question

I’m trying to create a Terrain Set (autotile) and I’ve setup what I think is a pretty simple terrain set.

image

I’m having issues when I try to add “off shoots” from previously painted blocks, but only when it’s one block size high or one block size wide.

This is my first time messing with the terrain set/autotile feature, so I assume I’m doing something wrong, but it’s not obvious to me what it is.

Your terrain set mode seems to be “Match corners and sides” but that doesn’t work well if you have only 16 tiles. Select the “Match sides” mode instead. Painted areas have a bit different shape now but draw them in the same pattern you did with the match corners and sides mode.