Running with the -networkprofiler command line argument can crash the server on the first engine tick in FNetworkProfiler::TrackFrameBegin because the file writer archive hasn't been created yet.
Result: Crash occurs and no map is loaded
Expected: Sancuary map opens
[2020.09.09-17.41.11:662][ 0]LogInit: First time updating LLM stats... [2020.09.09-17.41.14:155][ 0]LogWindows: Error: === Critical error: === [2020.09.09-17.41.14:156][ 0]LogWindows: Error: [2020.09.09-17.41.14:156][ 0]LogWindows: Error: Fatal error! [2020.09.09-17.41.14:157][ 0]LogWindows: Error: [2020.09.09-17.41.14:157][ 0]LogWindows: Error: Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000000 [2020.09.09-17.41.14:157][ 0]LogWindows: Error: [2020.09.09-17.41.14:158][ 0]LogWindows: Error: [Callstack] 0x00007fff9a326353 UE4Editor-Engine.dll!FNetworkProfiler::TrackFrameBegin() [D:\Work\P4Workspaces\Main\Engine\Source\Runtime\Engine\Private\NetworkProfiler.cpp:238] [2020.09.09-17.41.14:158][ 0]LogWindows: Error: [Callstack] 0x00007fff99e96aac UE4Editor-Engine.dll!UGameEngine::Tick() [D:\Work\P4Workspaces\Main\Engine\Source\Runtime\Engine\Private\GameEngine.cpp:1647] [2020.09.09-17.41.14:159][ 0]LogWindows: Error: [Callstack] 0x00007ff7baac8f0a UE4Editor.exe!FEngineLoop::Tick() [D:\Work\P4Workspaces\Main\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:4834] [2020.09.09-17.41.14:159][ 0]LogWindows: Error: [Callstack] 0x00007ff7baadf0fc UE4Editor.exe!GuardedMain() [D:\Work\P4Workspaces\Main\Engine\Source\Runtime\Launch\Private\Launch.cpp:169] [2020.09.09-17.41.14:159][ 0]LogWindows: Error: [Callstack] 0x00007ff7baadf1da UE4Editor.exe!GuardedMainWrapper() [D:\Work\P4Workspaces\Main\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:137] [2020.09.09-17.41.14:160][ 0]LogWindows: Error: [Callstack] 0x00007ff7baaf27dd UE4Editor.exe!WinMain() [D:\Work\P4Workspaces\Main\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:268] [2020.09.09-17.41.14:160][ 0]LogWindows: Error: [Callstack] 0x00007ff7baaf54fa UE4Editor.exe!__scrt_common_main_seh() [d:\agent\_work\5\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288] [2020.09.09-17.41.14:161][ 0]LogWindows: Error: [Callstack] 0x00007ff823f56fd4 KERNEL32.DLL!UnknownFunction [] [2020.09.09-17.41.14:161][ 0]LogWindows: Error: [Callstack] 0x00007ff824a5cec1 ntdll.dll!UnknownFunction [] [2020.09.09-17.41.14:161][ 0]LogWindows: Error: [2020.09.09-17.41.14:164][ 0]LogExit: Executing StaticShutdownAfterError [2020.09.09-17.41.14:165][ 0]LogWindows: FPlatformMisc::RequestExit(1) [2020.09.09-17.41.14:166][ 0]LogCore: Engine exit requested (reason: Win RequestExit) [2020.09.09-17.41.14:175][ 0]Log file closed, 09/09/20 13:41:14
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-96539 in the post.