I just got this note from them:
To scale an actor, please use the "Actor properties" set (F4 to open window) and edit the "DrawScale3D" field in the "Display" section.
Known crashes and how to avoid:
- Check links and references between SMission, SObjective and triggers actors. If a referenced actor is no longer present in your map, the game will crash.
- Same thing with SAlarm actors locking objectives. Any referenced trigger not present in the map will make the game crash.
- Another known crashing issue is with SVolumetricSensor. If the Volume referenced in the actor isn't present, the game will crash
- In a brush object, no edges should ever go through any other faces.
I hope that helps some of you!