Found a bug regarding the map editor: When I open up the editor fresh so that no map is loaded, and then load an already existing map, the editor crashes (error window 'FinalAlert has stopped working'). However, if I create a new map first, and then load other maps, everything loads fine.
An update on this, it seems putting the FinalAlert2MO.exe into windows XP compatibility mode has fixed this for me, plus some other occasional crashes.