Posts from cities are not developing. Auto-translated

I haven't played Heroes 3 in a while. I downloaded the HD expansion. I generate a map, get a hero and a town, which has basic buildings, including a guild of mages of the first level, and further development of the town is blocked. Why is that? Are there any options to enable town development? I've generated several maps and tried opening existing ones – everywhere in the town, there are the same buildings, and nothing new can be built.

Most likely, this is related to the fact that it is an HD version with old resurrection bugs. Try playing other versions; the issue should be the same.