Content Example File 3D Fluid doesnt work properly

Hi,
i’ve got a problem with the default content example files from Unreal Engine.
When I open the content example file in UE 5.2 Version and then the map for 3D Fluids my Collision of the static meshes dont fit to the real file of the YT-Video from Unreal.
I dont know why there is this issue but I hope somebody know how to fix this.
Im trying to understand the collision options and the results of the 3D Fluids. And I want that my static objects interact with my Fluid exactly like them in the YT-Video. But I only can use Simple collision. Complex Collision dont effect the 3D Fluid, but I need this collision for my 3D Fluid Simulation. Is there anybody who has an idea? I also tried mesh distance fields, but it doesnt work, I enable the option in my project settings under rendering and also in the niagara plugin.