The A2 ground cannot be seen in the transparent parts of the A4 Trees and just leaves it as a big black mark. How do I fix this.

Tileset for Rpg Maker MV and Mz. Start creating your own rpg with this Starterset · By
Hi, which maker are you using? This would be especially important for transparent objects.
With MZ, you can access different layers, and you can also use autotiles ( the a4 trees) on the second layer.
With MV, this sometimes doesn't work, so I have separate graphics without transparent areas for the autotiles.