Unreal Engine Issues
Unreal Engine Issues
Regression: FAnimInstanceProxy memory leak when BeginDestroy() called on UAnimInstance before USkeletalMeshComponent
UE - Anim - Runtime - Feb 10, 2025In UE 5.5, the fix applied by CL 36529858 in ue5-main updated USkeletalMeshComponent::ClearAnimScriptInstance() to call AnimScriptInstance::UninitializeAnimation() on the animation instance. This, i ...
Crash using Custom HLSL Node with Empty Shader Directory
UE - Graphics Features - Jul 13, 2017A crash is occurring when adding an empty shader directory when using the custom node within the material editor. This crash is preventing some users from opening their projects that use this workfl ...
Linux: UI scale is sometimes not 1.0 on non-high-DPI monitors
UE - Platform - Linux - Nov 7, 2017At the moment, UI scale is calculated on Linux from physical monitor dimensions (obtained ultimately from EDID) and not system scale. The granularity is 0.25, so scale can be 0.25, 0.5, 0.75, 1, 1.2 ...
The AND node always calculates all inputs
UE - Gameplay - Blueprint - Nov 5, 2015The AND node always calculates all inputs, even if the first input fails as False. Probably related to [Link Removed] (currently unresolved, but a Select node-specific fix is mentioned in the comme ...
Duplicating / Moving (to another level) an actor with a Hierarchical Instanced Static Mesh component causes a crash
UE - Graphics Features - Nov 14, 2016When you have an actor with a Hierarchical Instanced Static Mesh component that has a Static Mesh set and is populated with at least 1 instance and then duplicate it or move it to another level, it ...
HZB Setup Mips taking considerable time in GPU Visualizer
UE - Graphics Features - Jul 19, 2016HZB Setup Mips in the GPU Visualizer seems to be taking considerable ms in 4.12 and 4.13 compared to 4.11.2. This seems to mostly affect editor/PIE GPU Visualization but looks like it should when ...
Spawn Actor From Class Multiplying Transform Scale By Original Object Scale
UE - Gameplay - Jun 9, 2016When using the Spawn Actor from Class node, the Spawn Transform Scale is being multiplied by the actor's original scale, instead of just setting the scale to the Spawn Transform's value. In 4.11.2, ...
Removing Aimoffset node from anim blueprint crashes editor
OLD - Anim - Aug 27, 2015Removing Aimoffset node from anim blueprint crashes editor Frequency: 2/2 crashreporter: N/A ...
"Combine Meshes" Breaks Material Slot Assignment
Tools - Jan 18, 2017When importing an FBX with several different meshes and multiple materials with "Combine Meshes" enabled the materials will get assigned to incorrect portions of the mesh. I've included a version o ...
[CrashReport] UE4Editor_Landscape!ULandscapeInfo::RecreateLandscapeInfo() [landscape.cpp:2128]
UE - LD & Modeling - Terrain - Landscape - Sep 28, 2017This is an early trending crash coming out of the 4.17.2 hotfix, with no record of occurring previously. The callstack is very similar to [Link Removed] (fixed in 4.17.2) and may be related. Users ...