I have the map editor that comes with "Tribes of the East," and I don't encounter these problems. However, with the map editor that comes with "Hammers of Fate," this issue arises. Try simply using a different editor. Although, on this forum, people are writing that a similar error can also occur because the save path contains a Russian name. However, in my opinion, the editor is simply unfinished, while the editor for "Tribes of the East" doesn't produce these errors (so far).