I've been getting the compiler to crash 4 times in a row when I chose the Update Lights option.
I can do a full build just fine.
Here's the compiler log:
WMP to WMB Compiler V7.30 (WMB6 BSP) [CPUs: 2]
Report mode: DEFAULT
Initializing Map ...
Updating 9 Objects ...
ok
Placing 9 Objects ... ok
And that is where it crashes.
Like I said, I can do a full BSP build or chose the Default Build fine, but when I'm working on fine-tuning ambient lighting, that's inefficient as it takes more time.
And it doesn't work if I bring the lighting calculations down to "Low Quality" either.
And on a somewhat related note, I noticed that my shadows are different today than they were yesterday. At RGB(3,3,3) I could see well (which was odd since 3,3,3 is, for all practical purposes, black) and when I compiled today, it was black. (trying to go for a night scene, but I don't want pitch black shadows). I know this isn't a case of me forgetting to compile because I've been fooling around with ambiance for a while.
The only warning I get, is Duplicate Planes, but I only get that when I do a full BSP build.