Unreal Engine Issues
Unreal Engine Issues
iOS ReplayKit isn't working in UE5.1+
UE - Platform - Apple - Apr 21, 2023In 4.27 & 5.0 when you press the in-app screen recorder button it would pop-up a msg about the user giving permission to allow the screen recording and then would start the recorder and save the mov ...
Added Scene Components are Missing Billboard Nodes
UE - Gameplay - Components - Jun 22, 2023Newly added scene components to blueprints will have no billboard sprites, and thus cause the actor to be invisible in the editor unless other visible components are added. They exist on the default ...
Niagara persistent debug draw bug
UE - Niagara - Sep 19, 2023It is not possible to set the RotationNormalizedAngle to a value different from those you get from an input map. For example, you cannot set it to a value from a make float once created inside the m ...
Rect light artifacts from NaN pixels on surfaces that are coplanar with light position
UE - Graphics Features - May 10, 2024Rect lights cause artifacts (nan pixels) on pixels of surfaces that are coplanar with light position. In RectLight.ush, in RectIrradianceLambert, at line 106, c30 is -1, so rsqrt(0) causes a nan to ...
Add Substrate Material Support to Lumen Performance Overview
UE - Graphics Features - Substrate - Feb 10, 2025There is a discrepancy when inspecting Substrate materials in the Lumen Performance Overview. Compared to viewing non-Substrate materials the overview show all surfaces in red indicating that Lumen ...
[CrashReport] UE4Editor-Core!static void PureCallHandler() [WindowsPlatformMisc.cpp:477]
UE - Foundation - Core - May 8, 2020Generated from CrashReporter Error Message: Fatal error: [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/Core/Private/Windows/WindowsPlatformMisc.cpp] [Line: 475] Pure virtual function bei ...
Crash opening blueprint when a node class has been removed (e.g., anim blueprint with Ragdoll node with Immediate Mode plugin disabled)
UE - Gameplay - Blueprint Editor - Jan 26, 2017Crash occurs when the user attempts to open an anim blueprint containing the Ragdoll node, when Immediate Physics is disabled. ...
NVIDIA 5080 GPU Crash when launching City Sample with DX12
UE - Graphics Features - Lumen - Apr 16, 2025UPDATE This issue no longer reproduces on driver versions 580.88 and higher. City Sample game crashes immediately upon opening with a NVIDIA 5080 with the latest drivers as well as some previous dr ...
Setting "Is Enabled" via the animation timeline in UMG does not appear to work at runtime
UE - Editor - UI Systems - Jun 10, 2016Setting "Is Enabled" via the animation timeline in UMG does not appear to work at runtime ...
Crash when loading the tutorials for 'Landscape Painting Mode' and 'Landscape Sculpting Mode'
Tools - Jun 6, 2017A crash occurs when starting either the Landscape Painting Mode or Landscape Sculpting Mode tutorials. It crashes even if a landscape is already in the level. This is similar to [Link Removed], h ...