The version SGM currently runs (albatross_final) has a glitch that has about a 10% chance of randomly crashing the server when selected. When playing in single player, testing out maps, I found the version on steam was different than the one on SGM, albatross_fbeta. I decided to test the maps in single player by selecting them over and over until they crashed. What I found was that in about 15 times picking final, my client crashed 2 times ( "MapEntity_ParseAllEntities: found K while expecting ( ) and I got some weird lag another time. Fbeta I ran about 30 times, no lag, no crashes. I'm not sure why Fbeta is listed on steam rather than final (maybe Final was recognized to crash servers), or what specifically changed between fbeta and final, but whatever it is caused the crashes.