NHF – new heroes for Heroes V 3.1.

I took another computer, downloaded a clean version, downloaded the mod, and it's the same - the same bugs. Maybe some drivers are missing?

First, try moving all the contents of the Maps and UserMODs folders to another location - you definitely have a conflict between the contents of different mods, as I can tell by the presence of the file "all heroes" (or whatever it's called) - it's a real mishmash of mods!