Posts from Editor crashes. Auto-translated

Every time I create dialogue scenes and press "R" to check if everything is correct, the editor constantly CRASHES! What should I do? What could be the reasons, and how can I fix them? It's really annoying! This didn't happen before (restarting the computer doesn't help).

Added 9 minutes later
The same thing happens in the editors for the regular Heroes 5 and "Hammers of Fate".

Maybe the reason lies in THIS?

Do you visit the website? If so, please answer, and I'm also working on a campaign.