Godot version

v4.1.3.stable.official [f06b6836a] and v4.2.beta5.official [4c96e96]

System information

Godot v4.1.3.stable and Godot v4.2.beta5 - Windows 10.0.22621 - Vulkan (Mobile) - dedicated NVIDIA GeForce RTX 3080 (NVIDIA; 31.0.15.2849) - 12th Gen Intel(R) Core(TM) i7-12700KF (20 Threads)

Issue description

Hey guys, Seems like LightmapProbes are not working on Mobile renderer. They work well on Forward+ but not in Mobile.

I've already:

• Tested on both Godot 4.1.3 and 4.2 beta 5.
  • Lightmaps don't work on Godot 4.1.2 on Mobile Renderer, but works in 4.2 beta 5. Light Probes don't work with Mobile Renderer on both.
• Set up lightmap UVs.
• Marked static and dynamic objects and lights.
• Set up all kinds of World Environment settings, even tried to delete and disable it.
  • In this node, the Background mode Sky have issues on Mobile, so I set up to Custom Color (seems related to Vulkan Mobile backend: LightmapGI baking does not take environment lighting into account #55868 (comment))
• Baked LightmapGI on both Forward+ and Mobile:
• Tried many combinations on the LightmapGI node.
• Tried a brand new project, now even the Lightmaps stopped working on Godot 4.1.2 (Still working on 4.2 beta 5)...
• Yes, I restarted my PC.
• Deleted all Godot config files in AppData\Local and AppData\Roaming

Steps to reproduce

Bake a scene with LightmapGI and an object that transition between different lighting conditions. The Probes will work on Forward+ but not on Mobile.

Minimal reproduction project

LightmapProbes_Test.zip

Edit: MRP for Godot 4.3.dev6
Lightmap_Test_4.3.dev6.zip