GridMap tiles with textures rendered completely black

[blackears]

Godot version

v4.0.stable.official [92bee43]

System information

Windows 10, Compatability

Issue description

I'm trying to use GridMap to create a level for a game. I've created my blocks and exported them into a MeshLibrary. Unfortunately, when I use them, the texture is rendered as if albedo were set to pure black.

Steps to reproduce

Create a MeshLibrary by

• Making a new scene
• add a block (with a texture map on it) to the scene
• Selecting Scene/Export As/Mesh Library from the main menu

Create a GridMap

• Create a new scene
• Add a GridMap
• Set the MeshLibraray you created earlier as the MeshLibrary of the grid map
• Click on a block
• Drag in the viewport to draw with the block

You will see that all the blocks laid out in the viewport will be rendered as black.

Minimal reproduction project

GridMapError.zip

[KoBeWi]

Duplicate of #74111