Puddles are indoors in UDS

Hello there, I have recently been experimenting and exploring the world of lighting and rendering. I primarily use Ultra Dynamic Sky (UDS). One problem I have is that the parts of the map that are indoors also get puddle effects.

The puddle effects were implemented by using Wet_Weather_Effects material node. I mostly use flat surfaces or sometimes Megascans materials. All of them use the same node setup.

I have experimented with Vertex Normals but nothing changed. The puddles still formed in the indoor section of the map.

Also, the map was created with CubeGrid tool. I have also tried to use external static meshes, but the results are the same.

If you know how to solve this issue, please reply.
I really appreciate any help you can provide.