MMH5.5 - Heroes of Might and Magic 5.5

I downloaded the core file from the link you cited and also tried it from moddb. A kind person posted the megapack on the forum in this thread, complete with Russian language support. The creatures are visible in the map editor. But the generator crashes. I even tried it on different computers. I really don't understand how this is happening.

I have the same problem. A map with NCF creatures doesn't generate; it crashes during creation. I thought it wasn't even intended – that you have to add them yourself, but it turns out it's still possible... For now, I'm playing with regular creatures, but I'm really hoping for a solution to appear. I switched back from EWA to H5.5 because of NCF.