idcwe1) Launch first time MMH55_Editor_64 for example, select Duel preset - Name - OK, loading - on half of loading error about C++ libraries - Editor closing
2) Launch second time MMH55_Editor_64 for example, select Duel preset - Name - OK, loading - Editor closing on half of loading without error about C++ libraries

I do tested it it works as you say but i dont know why. Probably because of the new heroes that were added. I do not know how to fix this. Skeggy created presets by directly creating and editing XDB files.

idcweIs it normal that set's attributes doesn't work and when I have 4 on my char it's still shows 1/8?

Not sure what you mean by this.