I got these from the logs: (Filename: Line: 390) Internal: JobTempAlloc has allocations that are more than 4 frames old - this is not allowed and likely a leak (Filename: Line: 388) To Debug, enable the define: TLA_DEBUG_STACK_LEAK in ThreadsafeLinearAllocator.cpp. This will output the callstacks of the leaked allocations I'm looking to fix a crash that might be caused by this. I tried adding TLA_DEBUG_STACK_LEAK in Define Symbols but the logs are still the same. Usually this "JobTempAlloc has allocations that are more than 4 frames old" error is caught while in the editor but I don't see it now. The error above only shows up in built game. I've also disabled Burst if that helps.