Walls/Save/Load- Reload/Crash to Desktop

[MagnusFaustus]

This is something of a combined bug report. I was trying to constrict the approaches to my base by walling up canyons and the like with walls and locked gates, unfortunately as I was doing this I realized I had made some errors and used the in-game 'delete' command to remove a half dozen sections of defensive wall and an improperly placed gate. This had the dubious effect of making my engineers freeze in spot, unable to move anymore.

Attempting to push past this, I reloaded my game after making a save, only to have the entire program crash to desktop.... The game REALLY doesn't like unloading and reloading repeatedly. I've had quite a few similar-type glitches when repeatedly loading and unloading the game when there are a lot of objects on the screen.. (or not in some rare cases.)