[Balloons]

I get this CDataCacheSection::Unlock(memhandle_t__*) crash at least once or twice a day and it appears to only happen at end of a map before the transition (l4d2)

https://crash.limetech.org/v5rishrzbj45
https://crash.limetech.org/zncv5qpng5an
https://crash.limetech.org/72cl4ajdeydz
https://crash.limetech.org/jaj3kxbupcal