Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_InputCore!FKey::FKey()
UE - Editor - UI Systems - Slate - Nov 1, 2017This is a trending crash coming out of the 4.18 release. It may be a regression as there are no records of it occurring in 4.17. Users have not provided any descriptions of their actions when the c ...
Misaligned sampling in UI Material with with CustomStencil
UE - Editor - UI Systems - May 19, 2025The output of the CustomStencil node in a User Interface material does not align with the viewport dimensions. Toggling fullscreen/windowed mode (F11) causes the offset to reappear, so scaling the n ...
[CrashReport] UE4Editor_Foliage!FMulticastDelegateBase<FWeakObjectPtr>::CompactInvocationList() [multicastdelegatebase.h:159]
UE - World Creation - Worldbuilding Tools - Foliage - Aug 15, 2017This is a trending crash coming out of the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 150 /** 151 * Removes ...
Visual discrepancy appears with local position offset while mipmaps are enabled
UE - Graphics Features - Oct 20, 2017There is a visual discrepancy appears with the local position offset while mipmaps are enabled, when using a custom node that takes information from the local position node, with a texture that cont ...
The FNetNameMapping::GetUniqueName function appends numerical values to the end of the previous name instead of replacing the previous name's numerical value
UE - Gameplay - Blueprint Compiler - Feb 23, 2018The GetUniqueName() function attempts to make sure that all node names are unique. For nodes that are used a large number of times, it adds a numerical value to the end of the name. Prior to 4.18, t ...
Spring Controller node rotation not working
OLD - Anim - Jan 31, 2019The issue has been reported by one of our licensee. He proposed a patch to be applied in AnimNode_SpringBone.cpp 188,189c188,191 ＜ FVector ParentToTarget = (TargetPos - ParentSpaceBase.GetLoca ...
Blueprint Array/Map properties with DefaultToInstanced types are not instanced properly
UE - Gameplay - Blueprint - May 6, 2019At a licensee, I discovered a problem where Blueprint-created array and map properties are not correctly propagating the ContainsInstancedReferenced property flag. This means that if you create a Ma ...
Missing SmallOSAlloc/Free memory tracking with LLM on iOS
UE - Platform - Mobile - Dec 11, 2020Licensee reports missing memory tracking for LLM on iOS: In Engine/Source/Runtime/Core/Private/HAL/MallocBinned.cpp in SmallOSAlloc, there is a compiler define for IOS and within it there is an LLM ...
The ChaosCacheManager changes the bSimulatePhysics flag from the ObservedComponents and, if deleted, the change will persist, what can lead to confusion as observed physical entities will inadvertently stop simulating physics
UE - Simulation - Physics - Nov 26, 2024The ChaosCacheManager (CCM) changes the bSimulatePhysics flag from the ObservedComponents and, if deleted, the change will persist, what can lead to confusion as observed physical entities will inad ...
Physics Constraint doesn't hold if one Component is used for constraint
UE - Simulation - Physics - Jul 22, 2015Physics Constraint doesn't hold if one Component is used for constraint User Description: Hello, I recently updated the project from 4.7.6 to 4.8.2 and the physics constraint don't seem to work an ...