NHF – new heroes for Heroes V 3.1.

I have a few questions!
1) Is the effect of the hero's specialization reflected anywhere?
(I checked on several heroes - it seems that the specializations don't work (Example: hero - mage, Kubera))
2) Does the random map generator work normally with the mod, or does it need to be patched using the map patcher in the mod archive?
3) Does the patcher work?
(I checked several times with randomly generated maps and received a script stop "serialize.lua")