1) I've noticed the game easily crashes and generates more blank maps when randomly creating multiple maps within the editor.  To reproduce create a small map, then have it create another small map and repeat 5 times then soon you have blank maps of just land.  If you continue to repeat creating maps eventually even land is not generated and you only have a grey view in the editor.

2) The game crashes easily when loading a game, starting a new game then starting another new game.  It seems multiples of any saving, new game, and loading causes serious problems and game crashes.  Easy to reproduce.

3) When uninstalling the game there's no option about saving existing maps, custom sovereigns, mods, etc., etc., . During an uninstall options should exist for what is uninstalled.  It would be terrible for someone to have lost 2 weeks of work because of an uninstall/reinstall.

4) There doesn't seem to be any method for editing stuff which has been placed on maps in the editor.  Ideally map makers should be able to edit "basic" properties of monsters, buildings, quests, structures, triggers and events without turning towards XML editing.  I've played with the editor and if some method exists it's either broken or not easily found.