Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_UnrealEd!TArray<TSharedRef<FAssetThumbnailPool::FThumbnailInfo,0>,FDefaultAllocator>::AddUniqueImpl<TSharedRef<FAssetThumbnailPool::FThumbnailInfo,0> const & __ptr64>() [array.h:1805]
Tools - Sep 20, 2017This is a longstanding crash that occurs with low frequency per release, but has affected 400 users since the 4.11 release. Unfortunately among all of them, only one has provided any description. ...
Cannot select the content folder for Base Path in Sequence Recorder
UE - Anim - Sequencer - Dec 9, 2016When the editor first opens, and you open Sequence Recorder, the base path will be defaulted to /Game/Cinematics/Sequences. Cinematics and Sequences do not exist at this point so it will create thos ...
[CrashReport] GPUCrash - exiting due to D3D device being lost - D3D Hung - Nvidia
UE - Graphics Features - May 14, 2019Separating [Link Removed] into Nvidia and AMD tickets.This ticket will house Nvidia information Exported data on 5/14/2019 with following Query:1 Month Time FrameMajorVersion is 4.22.1Callstack Con ...
Multiple setter functions in UMaterialEditingLibrary always return false even when the parameter is correctly set on the MaterialInstance.
UE - Rendering Architecture - Materials - May 30, 2025In Unreal Engine, materials can expose parameters that can then be modified via instances (MaterialInstanceConstant). The UMaterialEditingLibrary provides several functions to modify these parameter ...
[CrashReport] UEdGraphPin::Modify - UEdGraphSchema_K2::RecombinePin
UE - Gameplay - Blueprint - Sep 7, 2017This is a somewhat common crash affecting users in 4.17. Users have not provided any descriptions of their actions when the crash occurred. Source Context 606 void UEdGraphPin::AddStructRe ...
GameplayTagQuery in editor can fail to update to new values or reset after being cancelled
UE - Gameplay - Apr 25, 2024When editing a GameplayTagQuery inside of the editor, there are times when the query editor will not update the query when selecting Ok or fail to return the query to its original state before editi ...
Shadow flicker with dynamic lighting at low cascade levels when FOV changes
UE - Graphics Features - Sep 1, 2017When using low shadow settings there is a flicker that occurs when changing a camera FOV, the flicker will end as soon as the FOV has finished adjusting to the new FOV. This can occur when:Using a ...
Lightmaps on Mobile Devices Appear Dirty and Blurry
UE - Platform - Mobile - Nov 28, 2017When deploying project to a mobile device, the quality of the baked lighting and shadows becomes very poor compared to "Mobile Preview." Lightmaps appear dirty and blurry, with splotches (As shown i ...
[CrashReport] GPUCrash - exiting due to D3D device being lost - D3D Hung - AMD
UE - Graphics Features - May 14, 2019Separating [Link Removed] into Nvidia and AMD tickets.This ticket will house AMD information Exported data on 5/14/2019 with following Query:1 Month Time FrameMajorVersion is 4.22.1Callstack Contai ...
Inconsistent texture loading issue within material editor
UE - Rendering Architecture - Materials - Jul 16, 2025A licensee has reached out via EPS about a texture loading issue they are having in-editor. I summarized the most important points below:The issue relates to texture load failure associated with mat ...