Unreal Engine Issues
Unreal Engine Issues
Crash when using Property Access node on Animation Blueprint (repro based on Lyra Starter Game animation layers)
UE - Anim - Runtime - Jan 24, 2024When using the Property Access node on Animation Blueprints to gain performance by better exploring parallel processing, it is possible that the underlying accessed property or any intermediate acce ...
Fracture Mode > "Remove-On-Break" setting: Cluster Crumbling causes flickering
UE - Simulation - Physics - Destruction - May 10, 2025Fracture Mode > "Remove-On-Break" setting: Cluster Crumbling causes flickering. Once the Remove-On-Break Cluster Crumbling effect is activated, there is a small delay between the disappearance of th ...
Crashes when attempting to use an Instanced Struct inside Control Rig / Rig VM
UE - Anim - Rigging - Control Rig - Mar 17, 2025Currently, the Control Rig Editor allows the user to use the "Instanced Struct" type, for example for a variable or function input/output. However, this type does not seem to be properly supported ( ...
Deadlock when running an asset validator commandlet with async skeletalmesh build
UE - Editor - Content Pipeline - Asset Build - Mar 10, 2023[External Code] UnrealEditor-Core.dll!FEventWin::Wait(unsigned int WaitTime, const bool bIgnoreThreadIdleStats) Line 1515 C++ UnrealEditor-Engine.dll!FAsyncTaskBase::WaitCompletionWithTimeout( ...
Game mode Login event called before GameMode BeginPlay
UE - Networking - Feb 23, 2016Code / blueprint script for game mode login functions executes before the game mode begin play function. ...
Crash when calling capture mouse as the return value in an OnKeyDown
UE - Editor - UI Systems - Sep 25, 2017The editor crashes when calling an over ridden On Key down function in a widget in order to capture the mouse with the return value of the function. ...
Using FObjectFinder outside of the constructor causes crash
UE - Foundation - Core - May 19, 2015If FObjectFinder is used in a function other than the constructor, which should not be done, it causes a crash. ...
GameplayAbility Blueprint's FGameplayAttribute does not retain value reference upon Compile
UE - Gameplay - Sep 17, 2019GameplayAttribute-type function arguments in BP-callable functions(I.E a Blueprint event graph) or nodes have their value reset on BP compilation ...
FAnimMontageInstance needs more API exposure
OLD - Anim - Feb 3, 2016Users are unable to call most functions on this class (FAnimMontageInstance ), as ENGINE_API is only added to a handful of functions. Other structs in AnimMontage.h may need similar exposure. ...
FFileManagerGeneric::Move has unused parameter
UE - Foundation - Core - Dec 28, 2016The bool Replace parameter variable is necessary when calling the function, but is not used inside the function itself. This makes the variable seem useless / unnecessary in the parameter list. ...