Unreal Engine Issues
Unreal Engine Issues
[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, 2021This 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, 2025The 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, 2016Textures 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, 2016Converting 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, 2015A 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 ...
Categories do not save within Widget Blueprints after compiling
UE - Editor - UI Systems - Feb 13, 2015If a variable is moved to a category outside of the default and then the user compiles the blueprint then the category will be erased and the variable will be put back in the category it was origina ...
UE4 3rd Person Blueprint PIE Caused Kernel Panic on iMac/AMD 6770M
UE - Platform - Apple - Dec 12, 2014When 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, 2015Changing 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 ...
Handle fracturing a destructible mesh when the source mesh has been deleted without a crash.
UE - Simulation - Physics - Destruction - Jul 13, 2015When attempting to fracture a destructible where the source static mesh has been deleted we get a crash in APEX. APEX can't seem to find any root leaf nodes to begin fracturing upon. This does not ...