Unreal Engine Issues and Bug Tracker (UE-66500)

Description

Adding an instance of an HISM on a dedicated server causes an assert.

Regression?: No
This occurred in 4.20

Steps to Reproduce

Download the attached project
Compile the project for your Source Editor version
Open UnrealFrontend for that Source Editor version
Select the downloaded project
Select "Advanced" at the top right to show additional options
Run the Windows launch with the WindowsServer variant and with By The Book cooking
After completion, navigate to the project's Saved/StagedBuilds/WindowsServer folder and launch the DedicatedHismServer.exe with the -log commandline argument
Result: The dedicated server instance throws an assert and crashes
Expected: The dedicated server successfully adds the HISM instance and does not crash

Callstack

[2018.11.14-17.05.25:773][ 61]LogWindows: Error: === Critical error: ===
[2018.11.14-17.05.25:774][ 61]LogWindows: Error: 
[2018.11.14-17.05.25:775][ 61]LogWindows: Error: Assertion failed: InstanceIndex == InstanceReorderTable.Num() [File:D:\matthew.clark_Main_Stream\Engine\Source\Runtime\Engine\Private\HierarchicalInstancedStaticMesh.cpp] [Line: 2203] 
[2018.11.14-17.05.25:775][ 61]LogWindows: Error: 
[2018.11.14-17.05.25:776][ 61]LogWindows: Error: 
[2018.11.14-17.05.25:777][ 61]LogWindows: Error: 
[2018.11.14-17.05.25:777][ 61]LogWindows: Error: [Callstack] 0x000007fefd3abded KERNELBASE.dll!UnknownFunction []
[2018.11.14-17.05.25:778][ 61]LogWindows: Error: [Callstack] 0x0000000140845f56 DedicatedHismBugServer.exe!FWindowsErrorOutputDevice::Serialize() [d:\matthew.clark_main_stream\engine\source\runtime\core\private\windows\windowserroroutputdevice.cpp:63]
[2018.11.14-17.05.25:779][ 61]LogWindows: Error: [Callstack] 0x0000000140642977 DedicatedHismBugServer.exe!FOutputDevice::LogfImpl() [d:\matthew.clark_main_stream\engine\source\runtime\core\private\misc\outputdevice.cpp:71]
[2018.11.14-17.05.25:779][ 61]LogWindows: Error: [Callstack] 0x0000000140580409 DedicatedHismBugServer.exe!FDebug::AssertFailed() [d:\matthew.clark_main_stream\engine\source\runtime\core\private\misc\assertionmacros.cpp:417]
[2018.11.14-17.05.25:780][ 61]LogWindows: Error: [Callstack] 0x00000001427a54ed DedicatedHismBugServer.exe!UHierarchicalInstancedStaticMeshComponent::AddInstance() [d:\matthew.clark_main_stream\engine\source\runtime\engine\private\hierarchicalinstancedstaticmesh.cpp:2205]
[2018.11.14-17.05.25:781][ 61]LogWindows: Error: [Callstack] 0x000000014281c890 DedicatedHismBugServer.exe!UInstancedStaticMeshComponent::AddInstanceWorldSpace() [d:\matthew.clark_main_stream\engine\source\runtime\engine\private\instancedstaticmesh.cpp:1801]
[2018.11.14-17.05.25:781][ 61]LogWindows: Error: [Callstack] 0x000000013ff0c4d1 DedicatedHismBugServer.exe!ABP_HismTest_C__pf1010915279::bpf__ExecuteUbergraph_BP_HismTest__pf_0() [d:\a - user stuff\dedicatedhismbugmain\intermediate\plugins\nativizedassets\windows\server\source\nativizedassets\private\bp_hismtest__pf1010915279.cpp:473]
[2018.11.14-17.05.25:782][ 61]LogWindows: Error: [Callstack] 0x000000013ff15f0e DedicatedHismBugServer.exe!ABP_HismTest_C__pf1010915279::execbpf__ExecuteUbergraph_BP_HismTest__pf_0() [d:\a - user stuff\dedicatedhismbugmain\intermediate\plugins\nativizedassets\windows\server\source\nativizedassets\public\bp_hismtest__pf1010915279.h:10]
[2018.11.14-17.05.25:783][ 61]LogWindows: Error: [Callstack] 0x00000001409561f2 DedicatedHismBugServer.exe!UFunction::Invoke() [d:\matthew.clark_main_stream\engine\source\runtime\coreuobject\private\uobject\class.cpp:4862]
[2018.11.14-17.05.25:784][ 61]LogWindows: Error: [Callstack] 0x0000000140b4e461 DedicatedHismBugServer.exe!UObject::ProcessEvent() [d:\matthew.clark_main_stream\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1480]
[2018.11.14-17.05.25:785][ 61]LogWindows: Error: [Callstack] 0x0000000142275e3b DedicatedHismBugServer.exe!AActor::ProcessEvent() [d:\matthew.clark_main_stream\engine\source\runtime\engine\private\actor.cpp:719]
[2018.11.14-17.05.25:786][ 61]LogWindows: Error: [Callstack] 0x00000001428e2074 DedicatedHismBugServer.exe!FLatentActionManager::TickLatentActionForObject() [d:\matthew.clark_main_stream\engine\source\runtime\engine\private\latentactionmanager.cpp:200]
[2018.11.14-17.05.25:787][ 61]LogWindows: Error: [Callstack] 0x00000001428ce096 DedicatedHismBugServer.exe!FLatentActionManager::ProcessLatentActions() [d:\matthew.clark_main_stream\engine\source\runtime\engine\private\latentactionmanager.cpp:137]
[2018.11.14-17.05.25:787][ 61]LogWindows: Error: [Callstack] 0x0000000142926cb2 DedicatedHismBugServer.exe!UWorld::Tick() [d:\matthew.clark_main_stream\engine\source\runtime\engine\private\leveltick.cpp:1513]
[2018.11.14-17.05.25:788][ 61]LogWindows: Error: [Callstack] 0x00000001427882f0 DedicatedHismBugServer.exe!UGameEngine::Tick() [d:\matthew.clark_main_stream\engine\source\runtime\engine\private\gameengine.cpp:1364]
[2018.11.14-17.05.25:789][ 61]LogWindows: Error: [Callstack] 0x000000013feeb4ae DedicatedHismBugServer.exe!FEngineLoop::Tick() [d:\matthew.clark_main_stream\engine\source\runtime\launch\private\launchengineloop.cpp:3699]
[2018.11.14-17.05.25:790][ 61]LogWindows: Error: [Callstack] 0x000000013fef8850 DedicatedHismBugServer.exe!GuardedMain() [d:\matthew.clark_main_stream\engine\source\runtime\launch\private\launch.cpp:174]
[2018.11.14-17.05.25:790][ 61]LogWindows: Error: [Callstack] 0x000000013fef88da DedicatedHismBugServer.exe!GuardedMainWrapper() [d:\matthew.clark_main_stream\engine\source\runtime\launch\private\windows\launchwindows.cpp:145]
[2018.11.14-17.05.25:791][ 61]LogWindows: Error: [Callstack] 0x000000013ff050c1 DedicatedHismBugServer.exe!WinMain() [d:\matthew.clark_main_stream\engine\source\runtime\launch\private\windows\launchwindows.cpp:276]
[2018.11.14-17.05.25:792][ 61]LogWindows: Error: [Callstack] 0x00000001441d03be DedicatedHismBugServer.exe!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:283]
[2018.11.14-17.05.25:793][ 61]LogWindows: Error: [Callstack] 0x00000000772a59cd kernel32.dll!UnknownFunction []
[2018.11.14-17.05.25:794][ 61]LogWindows: Error: [Callstack] 0x000000007750385d ntdll.dll!UnknownFunction []
[2018.11.14-17.05.25:794][ 61]LogWindows: Error:

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Fixed

Component	Tools
Affects Versions	4.20, 4.21
Target Fix	4.22

Fix Commit	4570369
Main Commit	4676940
Release Commit	4862694

Created	Nov 14, 2018
Resolved	Nov 15, 2018
Updated	Feb 12, 2019

View Jira Issue

UE-66500

Adding HISM instance on a Dedicated Server causes a crash

Adding HISM instance on a Dedicated Server causes a crash

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