Unreal Engine Issues
Unreal Engine Issues
MoviePipeline: Cannot add per-shot {file_format} name overrides
UE - Anim - Sequencer - MRQ - Feb 3, 2022void UMoviePipelineBlueprintLibrary::ResolveFilenameFormatArguments(const FString& InFormatString, const FMoviePipelineFilenameResolveParams& InParams, FString& OutFinalPath, FMoviePipelineFormatArg ...
TakeRecorder does not add a track to a level sequence when niagara FX is spawned
UE - Anim - Sequencer - Mar 5, 2024In UTakeRecorderActorSource::EnsureObjectTemplateHasComponent() function, MakeUniqueObjectName() generates the same name of a component which CachedObjectTemplate for TakeRecorder has already had. T ...
Linear interpolation occurs on constant tangent curve partially
UE - Anim - Runtime - Feb 17, 2025When using UV scrolling for a flipbook-like animation in Animation Sequence, creating keys with "Constant Tangent" settings on Curve Editor does not result in an instantaneous change to the specifie ...
Spline component that is altered in the construction script cannot be referenced by the Event Graph
UE - Gameplay - Blueprint - Apr 21, 2015A Spline component that is altered in the construction script cannot be referenced by the Event Graph. ...
Crash on exit PIE when playing with more than one player on Linux
UE - Platform - Linux - Oct 3, 2016When playing in non-single player game in the editor (either set # players or check dedicated server checkbox), the editor will crash when the play session ends. Regression: Yes - editor does not c ...
Crash, Couldn t find Shader FHitProxyVS for Material Resource M_Glass
UE - Graphics Features - Aug 18, 2014Changing the properties of M_Glass and M_Metal_Copper to two sided via the property matrix crashes the editor to desktop. (Note: M_Glass with ANY of the M_Metal Materials except M_Metal_Chrome will ...
Crash when using StaticDuplicateObject with mismathced Source and Destination class types
UE - Foundation - Jun 19, 2025Starting in Unreal Engine 5.4, StaticDuplicateObject internally switched to using Unversioned Property Serialization (UPS) for performance reasons. However, UPS assumes the source and destination ob ...
Attempting to apply instance changes to blueprint after altering a struct array crashes editor
UE - Gameplay - Blueprint - Dec 14, 2015Editor crashes if a struct array that has been made editable is edited in an instance within the details pane of the level viewport, then the changes are applied from the instance to the base bluepr ...
Packaging for DLC with plugin multiple times causes failure due to file path length
When the DLC is being built for a project and stored in a plugin, the result is normaly until the DLC is packaged multiple times. This leads to the file path becoming more and more nested each time. ...
GAS: Removing an AttributeSet followed by removing an active GameplayEffect results in client crash
UE - Gameplay - Gameplay Ability System - Aug 23, 2023Gameplay Ability System Standalone: Removing an attribute set and then removing an active gameplay effect that has a modifier for an attribute from that set results in a crash. Currently, one must ...