Unreal Engine Issues
Unreal Engine Issues
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. ...
When rendering a reflection capture, the lightmap may be rendered without finishing streaming.
UE - Graphics Features - Oct 5, 2021This problem occurs when you do a lighting build. It does not occur when the reflection capture is done by itself. ...