So I have been working on my map for over 2 days and for some reason when I try to compile the map it returns to it's older version. I tried everything I could. In hammer it shows the new version, but in game it shows the older version. I hope that there is a way to fix it, or otherwise all the work that I had done during these 2 days from morning to evening is ruined... Also I get a odd file into my desktop called "Hammer_20150303_143225_1_accessviolation.mdmp" I have no idea why this pops up and what it is. The map worked this morning with no problems, after the morning I have done huge amount of work on the map.