Forward Rendering with Metal is stretched on iOS

UE - Platform - Mobile - Aug 19, 2015

When you turn off 'Supports Open GLES2' from the iOS settings and package a game with 'Support Forward Rendering with Metal (A7 and up devices)' the textures/materials are stretched across the objec ...

Android build fails with GPU Lightmass plugin enabled

UE - Platform - Mobile - Nov 5, 2020

Packaging for Android fails with the GPU Lightmass plugin enabled. A customer reported this and I was able to successfully repro it, however my callstack was different. I'm attaching my logs and cal ...

FXAA doesn't work if you replace the tonemapper with a material postprocess

UE - Graphics Features - Sep 1, 2016

As reported on UDN. If using a custom postprocess which replaces the tonemapper, FXAA doesn't work. ...

Modifying a UProperty pointer to an EditInlineNew class can break arrays in the same details panel

Tools - Oct 26, 2017

When a UProperty pointer to an EditInlineNew class is modified, we reconstruct the details panel and rerun customization builders. This can cause FDetailArrayBuilder to run it's destructor, we can u ...

Converting BSP to static mesh on Linux causes the editor to crash

UE - Platform - Linux - Mar 11, 2016

Converting a BSP to a static mesh will freeze and crash the editor when done on Linux. Windows does not exhibit the same conversion crash. ...

EditInlineNew UObject properties in a UserWidget Blueprint are reset to None when the Blueprint is compiled.

UE - Gameplay - Blueprint - Nov 4, 2016

When a widget Blueprint that is derived from a custom UserWidget class containing a custom EditInlineNew UObject class property is compiled, any value that has been set in the UObject property is re ...

Android compiles for x64 (Intel x86_64) fail due to Oculus plugin

UE - Platform - Mobile - Jul 19, 2019

OculusHMD plugin fails to compile on Android if compiling for x64 architecture; it isn't supported so module needs to be skipped. ...

Build Step Async Step Infinite Loop

Tools - May 2, 2016

The new custom editor build steps don't properly advance when we complete an async build step, looks like it was untested. ...

5.5.3 insights crashes when opening .utrace files with "RenderCommands,RDG,RHICommands" channels.

UE - Foundation - Insights - Feb 19, 2025

The customer provided reproduction steps and a trace file that crashes Insights. From the customer: manually placing if (!CurrentGraph) Unknown macro: { return; } nullchecks in RenderGraphInsi ...

Skeletal Mesh Collapses with OpenGL ES3.1 on Tegra K1 devices

UE - Platform - Mobile - Oct 18, 2016

When launching to an Android device that supports ES3.1 skeletal meshes seem to collapse in game. ...