Try downloading this:
Waterfall Object (https://www.mediafire.com/?p9g3hv7qd8e8qjd)
Place all of the files inside there into FeralHeart\\Media\\Objects.
If it asks to replace anything, do it~
Hopefully this will fix things for you!
It will go directly into your obejcts folder once you're done
so be sure to check for it before you try placing it manually
Good luck!
Have you tried Placing the .FHO file into FeralHeart\\Media\\Objects and putting the other files into FeralHeart\\Media\\Objects\\My Objects?
If that also doesn't work, try changing your rendering system to Direct 3D9 in Options\\Video\\Rendering Subsystem.
You mentioned that you re-installed the game, so the Rendering System would have set itself to default.