I added 4 blocks to an error free map and VIS just refused to run after that.
I run the -chart parameter to tell what resources are being used and everything is fine.
There is no error in the compile log, i just get a "windows encountered an error" message and vis.exe shuts down. ( the rest of the compile completes)
Does it in both hammer 3.5 and batch compiler.
I reverted to a previous version and everything is fine now, but I spent hours looking for a problem and couldn't find anything and I have no idea what caused it to happen ( i didn't saved the messed-up map unfortunately)