Why would a nexus (incomplete) with 169 health left and not being fired on explode when I destroyed another nexus on the map. (Also incomplete.) 
Custom map ETF 11; I do have a save file from immediately before. (but I don't know how to do anything with it.)
			
			
			
				The save is in 
%appdata%\CreeperWorld2\  folder.
Look for the number of the save slot (or the quick.cw2 file).
Here attach that file to your post. 
Fully you should mention that, but I thought I was simply too slow, never put 2 and 2 together.
			
			
			
				Here's the save file. I suspect the same thing happened on a different attempt earlier, but since I was actually firing at both at the time I thought my timing was off. (Locked up the game and I had to close.)
			
			
			
				On my machine the frame rate dropped to 1.9 fps, very close to appearing "locked up."
			
			
			
				Quote from: Grauniad on September 13, 2011, 11:44:01 AM
On my machine the frame rate dropped to 1.9 fps, very close to appearing "locked up."
I have this problem every time when I try to complete Bren System - Distant Outpost Part 1. A savegame is attached.
When I drop in the final CB, the game freezes, subsequently crashes. When I finish the Nexus, the game starts to use 50% CPU (i.e., 3 cores of 3.2 GHz) and multiple GB of RAM; this has to be related to the crash.
			
 
			
			
				Quote from: Lord_Farin on September 16, 2011, 08:38:50 AM
 the game starts to use 50% CPU (i.e., 3 cores of 3.2 GHz) and multiple GB of RAM; this has to be related to the crash.
The only issue I have with your observation is that AIR soes not use multiple processors. It is puzzling.
			
 
			
			
				Update: Virgil is looking into this. He can recreate the issue from a save game. Thanks for posting those.
			
			
			
				Yeah...
That was kinda funny.
I apparently broke this in a prior update.  The nexus was destroying itself over and over again... that's where the huge number of explosions were coming from and the eventual hang.  
A new build with a fix will go up shortly.
--Edit--
The patch is up.  You can now complete your save games.
			
			
			
				Thanks for the quick response and fix. Keep up the good work!