FPSC will not re-load mapdata after saving sometimes

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Saving

What is the expected output? What do you see instead?
When I save I should see it load up the level's entities, segments, etc.. But 
instead does nothing with a black background.

What version of the product are you using? On what operating system?
V1.18 Windows 7 Home premium 64bit

Please provide any additional information below.
This happens sometimes, but not all the time. It's frustrating D:
It's a pain since I'm working on something... (I wont tell!)

Original issue reported on code.google.com by AdamXPly...@gmail.com on 3 Feb 2012 at 2:32