Gridmap is reacting with lighting irreglarly

Help
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1

Godot Version

Godot 4.3 android stable

Question

I’m using a gridmap with the kenney 3d city roads prototype kit.
For some reason, a few tiles from the gridmap will accept lighting from spotlights/omnilights etc, and others will not!
I’m using this to create a local 1 vs 1 game with split screen. The lighting issue occurs regardless of how I’ve tried to set up the Scene.
Could it be a problem with the mesh library?

This is not an urgent issue, but I’d like to get to the bottom of why it is happening.
Video of the viewport showing the issue

2

I have discovered what is causing the issue.
Godot compatibility mode can only process so many lights at once!
I now have to figure out how I make my scene work with less lights.
Perhaps I will make a script that only turns on lights within a certain distance…