Unreal Engine Issues
Unreal Engine Issues
OnActorSpawned is called prior to FinishedSpawning for PlayerControllers and actors spawned with bDeferConstruction set to true
UE - Gameplay - Oct 12, 2017When a PlayerController or any actor with bDeferConstruction set to true is spawned, OnActorSpawned.Broadcast is called prior to FinishSpawning which can cause issues as some components may not be i ...
Dynamic Light placed inside of a Dynamic Static Mesh doesn't pass through the geometry
UE - Graphics Features - Jun 2, 2017Dynamic Light placed inside of a Dynamic Static Mesh doesn't pass through the geometry. The static mesh is not double-sided. User Description: It appears that in Unreal 4.16 one loses the ability ...
Sequencer crashes when scrubbing characters with sub-anim instances and montage slots
OLD - Anim - Oct 2, 2019I saw a following assertion. Assertion failed: (AdditivePoses.Num() > 0) || (NonAdditivePoses.Num() > 0) [Link Removed] [Line: 1381] This is my quick fix// code placeholder void FAnimInstance ...
Physics simulation shows strange behavior with specific skeletal mesh configurations
UE - Simulation - Physics - Mar 3, 2017PhAT is inconsistent on when it does and doesn't apply scale to Constraint positions. This leads to cases where the positions provided create constraints that may not work when the Preview Skeletal ...
Crash after Splash Screen on Android (ETC2) when Adding r.UseShaderCaching and r.UseShaderPredraw
UE - Platform - Mobile - Jul 20, 2017A crash occurs when adding the two rendering variables 'r.UseShaderCaching' and 'r.UseShaderPredraw' when deployed to an Android device packaged for (ETC2). I ran a few more tests to try and isolat ...
r.Shaders.Optimize=0 crashes when compiling a UI material
UE - Rendering Architecture - Materials - Sep 2, 2024[2024.08.30-22.12.22:384][ 73]LogWindows: Error: appError called: Assertion failed: CurrentGPUVirtualAddress != 0 [Link Removed] [Line: 659] Disabling shader optimisation can crash the editor when ...
Assert when having too many VR devices
UE - Platform - XR - Aug 31, 2018Internal team is encountering a crash when adding too many VR devices. Email thread titled "Re: Crash Logs" The bug is an internal limit of devices the code supports, which is 8. If a controller o ...
The engine crashes when adding a new brush at newly created level by a specific way.
UE - LD & Modeling - Modeling Tools - Mesh Editing - Jun 17, 2019issuesFBSPOps::csgAddOperation returns null if BuilderBrush has no valid polys.The creating level on content browser never calls "UEditorEngine::InitBuilderBrush(NewWorld);". But "New level" button o ...
Exported Particle Emitter Tries to Reference Graphs of Original System
UE - Niagara - Dec 7, 2017User reports that the bug was initially discovered in 4.18 and then reproduced in 4.16 project (attached). Per User: For some reason when exporting this emitter to any other system bugs out. When ...
Xcode build will fail if project has a file that was added by the Editor that contains a Copyright (©) symbol
UE - Platform - Apple - Mar 27, 2017Code class files created by the Editor that include the Copyright symbol (©) are created with UTF-16 encoding. This encoding is not supported by Xcode on Mac, and will result in a build failure. In ...