Ah, yes, that's exactly what was the cause of that behavior.
When the mod is turned on and loaded before Equipment Graphics then threre are no items rendering on creatures, and when it's loaded after then forks start to appear.
I could look for more cases if it will help to find any sort of workaround, like this mod) Hope someday those will be included in vanilla tho

It's a compatibility issue. The game is combining the creatures_graphics_layered.txt file from genesis dwarves with my tile sheets.