Calling FHttpResponsePtr::GetContentLength() from OnRequestProgress delegate returns different values on Mac/iOS than Windows

Tools - Nov 9, 2016

Licensee was looking for a way to get total file size to display download progress. On Windows (which uses the curl library for Http request/response), binding a function to the OnRequestProgress d ...

Force Delete of Referenced SpeedTree Instance causes Crash

UE - Graphics Features - Nov 10, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: IsValid() [Link Removed] [Line: 780] Source Context: 1873 ...

[CrashReport] Assertion failed: !PinRef->bWasTrashed | UEdGraphPin::SerializePin()

UE - Gameplay - Blueprint - Aug 29, 2017

This is a common and longstanding crash that has occurred since at least 4.15 and affected nearly 500 users. The CrashGroup was previously linked to [Link Removed], but that had specific repro step ...

Sprite collision is inaccurate

UE - Gameplay - Paper2D - Oct 31, 2014

Sprite collisions do not accurately reflect the collision for the sprite. While the collisions are always the same between two of these, the collisions do not correspond to the shape of the collisio ...

Crashes Caused by Deinitialization of Variables with Specific Names

UE - Gameplay - Components - Jun 14, 2018

I was able to repro the crash in 4.19. Unable to open sample project in 4.20 or 4.21. Per Licensee: While porting one of our classes from using UMaterialBillboardComponent to a hand rolled Billboar ...

Clean DocumentDB setup fails indexing

UE - Foundation - Horde - Server - Feb 21, 2025

Source [Link Removed] The user has encountered the error log: MongoDB.Driver.MongoCommandException: Command createIndexes failed: Implicit collection creation not supported when creating indexes I ...

[CrashReport] UE4Editor_ShaderCore!FVertexFactory::Set() [vertexfactory.cpp:180]

UE - Graphics Features - Jul 5, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Source Context: 165 return *VertexFactoryTypeIt; 166 } 167 } ...

[CrashReport] UE4Editor_UnrealEd!ObjectTools::ForceDeleteObjects() [objecttools.cpp:2097]

UE - Gameplay - Blueprint - Aug 8, 2016

This JIRA is being entered as a result of it being one of the top crashes occurring in 4.13 Preview 1. Error message: Ensure condition failed: Lhs.CurrentNum == Lhs.InitialNum [Link Removed] [Line ...

[CrashReport] UE4Editor_Renderer!TStaticMeshDrawList<TBasePassDrawingPolicy<FUniformLightMapPolicy> >::GetUsedPrimitivesBasedOnMaterials() [staticmeshdrawlist.inl:868]

UE - Graphics Features - Feb 19, 2016

This Jira was entered due to a high number of occurrences in 4.11 Preview 5. Error message: Assertion failed: !Proxy->IsDeleted() [Link Removed] [Line: 867] Source Context: 853 { 854 ...

RecastNavMesh - Agent Height changes back to default value after project restart

UE - AI - Jan 16, 2018

When trying to change the value of Agent Height under RecastNavMesh-Default it will change back to its default value when you open back up the project. ...