Other users haven't reported any problems. If you're willing, you could describe the issue in more detail, including when the crashes occur and if there's any obvious connection. You can also check the game files to see if there are any mods or other maps that might be causing the issue.
I didn't have any mods or other maps; I always deleted them after playing. But here, the game would just crash after every 2-3 saves, either during my turn or during the turn of the heroes.