Unreal Engine Issues

UE-67977

Enabling Merge GC Clusters and Blueprint Clustering causes a packaged Window project to crash

Enabling Merge GC Clusters and Blueprint Clustering causes a packaged Window project to crash

UDN
Description

Enabling the check boxes for Merge GC Clusters and Blueprint Clustering causes packaged Windows projects to crash on startup. The log and dump files regarding this crash have been attached to this ticket.

Tested in 4.20.3 (CL - 4369336), 4.21.1 (CL - 4613538), 4.22 (CL - 4678276)

Steps to Reproduce
  1. Create a Blank Blueprint project with no Starter Content
  2. Save default map as 'Main', set it up as the Game Default Map
  3. In PojectSettings->Engine->GarbageCollection enable 'Merge GC Clusters' and 'Blueprint Clustering Enabled'
  4. Make a material called `M_Shared'
  5. Make a blueprint called 'BP_A' inheriting from AStaticMeshActor
  6. Open 'BP_A', set mesh to 'Engine/EngineMeshes/Cube'
  7. Set material to 'M_Shared'
  8. Duplicate 'BP_A' and name it 'BP_B' 
  9. Add 'BP_A' and 'BP_B' to the 'Main' scene
  10. Save
  11. Package for Windows 64 bit
  12. Run Packaged executable
Callstack

[2019.01.03-15.54.29:490][ 0]LogWindows: Error: === Critical error: ===
[2019.01.03-15.54.29:490][ 0]LogWindows: Error:
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: Fatal error!
[2019.01.03-15.54.29:490][ 0]LogWindows: Error:
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: Unhandled Exception: EXCEPTION_STACK_OVERFLOW
[2019.01.03-15.54.29:490][ 0]LogWindows: Error:
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a2629 UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:490][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:491][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:492][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:492][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:492][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:492][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:492][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:492][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:492][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:492][ 0]LogWindows: Error: [Callstack] 0x00007ff7f34a262e UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:492][ 0]LogWindows: Error: [Callstack] 0x00007ff7f347188c UE4Game.exe!UnknownFunction []
[2019.01.03-15.54.29:492][ 0]LogWindows: Error:
[2019.01.03-15.54.29:505][ 0]LogExit: Executing StaticShutdownAfterError
[2019.01.03-15.54.29:507][ 0]LogWindows: FPlatformMisc::RequestExit(1)
[2019.01.03-15.54.29:508][ 0]Log file closed, 01/03/19 10:54:29

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Fixed
ComponentUE - Foundation - Core - Cooker
Affects Versions4.21.1, 4.22, 4.20.3
Target Fix4.22
Fix Commit4691528
Main Commit4772220
Release Commit4862694
CreatedJan 3, 2019
ResolvedJan 9, 2019
UpdatedApr 3, 2019
View Jira Issue