Black Water Boundary Visible Inside Basements Near Water Topology

Hi, when building a basement in or near an area marked with water topology, a black vertical surface appears inside the basement. The screenshots show the water boundary cutting through the room.

Could you please take a look? Is there a way to prevent this surface from appearing inside basements?

Thanks and best regards,
Michael

Unfortunately there is not anything I can do. Rust prerenders the ground below water as dark light like, we cant change it. Luckily, besides looking ugly its pretty harmless. It can actually be kind of cool if you're able to get the basement fully in that area because then you can have a dark basement.

But yeah, I cant fix that.

Changed Status from Pending to Not a Bug