Autotiles doesn't work

Hello.

I have a problem inserting autotiles in my game. When I put a water autotile, it doesn't display in the game, so water stand quiet and don't move. I don't know why, maybe I make a mistake when I put it or the autotile image doesn't fix or work for my game. I use Pokémon Essentials v17.2.

This is the image:

https://imgur.com/WRfAXNt

Help please!

Seems to be working fine for me.


Here's how it looks like on my project:

I had a similar problem with certain water autotiles though. They wouldn't display unless they were on the first layer.