Sometimes in Unreal Engine 5.3, When you tweak parameters and undo, you can face some weird artifact that InstancedStaticMeshComponent duplicated and can’t be resolved.
We make a button to remove this situation: Remove ISM Components
When you Click this button, All Auto-Generated Mesh data will be cleaned up and you have to regenerate building.
Fortunately, We confirmed this artifact is resolved at UE 5.4 above.
So if you use UE 5.3, use this button to fix problem.
This is not a problem, we intended to utilize performance by merging bunch of static meshes in single data.
However, if you want to use high polygon data in stores, you can make your own store module by utility we provided.
Check out the page below how to modify store variation module manually.