'recompileshaders changed' doesn't work

UE - Graphics Features - May 7, 2021

The issue is already fixed in UE5 by CL 14368553. This Jira is created for cherrypick into UE4 ...

Crash in FMacApplication::FindScreenByCocoaPosition when using the mouse in the ILIAD plugin.

UE - Platform - Apple - Aug 18, 2021

I think this could occur anytime but is probably very rare. However using this plugin from the reported UDN makes it much easier to repro as they are calling FMacApplication::ConvertCocoaPositionTo ...

[CrashReport] UE4Editor-MovieSceneTracks!UMovieSceneComponentMobilitySystem::RestorePreAnimatedState

UE - Anim - Sequencer - Sep 13, 2021

[CrashReport] UE4Editor-MovieSceneTracks!UMovieSceneComponentMobilitySystem::RestorePreAnimatedState(IMovieScenePreAnimatedStateSystemInterface::FPreAnimationParameters const &) [MovieSceneComponent ...

When rendering a reflection capture, the lightmap may be rendered without finishing streaming.

UE - Graphics Features - Oct 5, 2021

This problem occurs when you do a lighting build. It does not occur when the reflection capture is done by itself. ...

GPU Crash may occur when using Nanite Tesselation on landscape with several shadow casting local lights

UE - Graphics Features - Nanite - May 5, 2025

The GPU may time out in NaniteSplit when drawing VSM shadows for Nanite Tessellated landscape with in a scene with several local shadowed point lights. The issue doesn't reproduce in 5.6, likely to ...

SetTextureParameterValue stopped working with Dynamic Material Instances (from Blueprints)

UE - Graphics Features - Mar 28, 2016

Textures in Post Process Blueprints do not update with Dynamic Material Instances. Scalar and Vector Parameters update as expected, but Textures do not. Note This was attempted with both a materi ...

Converting Int to Byte to Enum crashes editor during PIE

UE - Gameplay - Blueprint - Jan 28, 2016

Converting Int to Byte to Enum crashes editor during PIE. Frequency: 3/3 Crashreporter: N/A ...

Projects crashing on launch after converting from 4.7.3 to 4.7.4

UE - Gameplay - Blueprint - Apr 3, 2015

A couple users have reported a crash when opening their 4.7.3 project in 4.7.4. From MikeB:https://answers.unrealengine.com/questions/205043/473-to-474-project-crash-on-startup.html The guy is hit ...

UE4 3rd Person Blueprint PIE Caused Kernel Panic on iMac/AMD 6770M

UE - Platform - Apple - Dec 12, 2014

When I was running the default 3rd person shooter template which had no modifications yet, I pressed play and began to move around. Within a few seconds, the computer shut off as if the power cord h ...

Changing the name of an Event Dispatcher's Input will not update existing nodes in Event Graphs and cause a compiler error

UE - Gameplay - Blueprint - Mar 5, 2015

Changing the name of an Event Dispatcher's Input will not update existing nodes in Event Graphs and cause a compiler error. The error text includes links that open the level tab rather than locating ...