NHF – new heroes for Heroes V 3.1.

Hey everyone, good day. I have a problem. I'm playing with EWA. I patch the map using the NHF patcher and copy it back into the maps folder. The map then has the NHF prefix. However, in the game, only the original map appears in the list, and most of the heroes don't work correctly on it. The one with the NHF prefix doesn't appear. What am I doing wrong?
P.S. The mod is great, and I'd like to use it specifically with EWA.