Unreal Engine Issues
Unreal Engine Issues
Regression: Selected Virtual Production Roles are saved but not loaded from Saved/Config/WindowsEditor/UserVPRoles.ini, unless file DefaultUserVPRoles.ini exists (even if completely empty)
zComponent - Archive - Mar 7, 2025When the "Virtual Production Utilities" plugin is enabled, the Editor makes available a list of "Virtual Production Roles", which can be created and individually selected in a "VP Roles" dropdown on ...
Orphaned BP actors when using UWorldPartitionBuilder
UE - Engine Scaling - Streaming - World Partition - Nov 21, 2025From an EPS case: --------------------------------- We're seeing a recurring issue where child BP actors are becoming orphaned during any processing that uses UWorldPartitionBuilder. It affects ...
[CrashReport] UE4Editor_Engine!USimpleConstructionScript::RemoveNodeAndPromoteChildren() [simpleconstructionscript.cpp:785]
UE - Gameplay - Blueprint - Jul 5, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Source Context: 770 AllNodes.Remove(Node); 771 772 Node->bIsParen ...
[MetaSounds][Voice Management] - MetaSounds set to Restart do not virtualize correctly when the Attenuation Shape is not a Sphere
UE - Audio - Aug 17, 2022When using Attenuations with MetaSounds, if the Attenuation Shape is Sphere it works as expected. However, other shapes do not work correctly. The sound either becomes deactive or sometimes the soun ...
Translucent meshes randomly flicker when using VSM
UE - Rendering - Features - Jun 23, 2026Flickering can occur on translucent materials, usually in the distance when there is at least one directional light and when using VSM. Flickering seems highly dependent on framerate and timing. L ...
Blueprint Class functions are overridden in packaged shipping project.
UE - Gameplay - Blueprint - Mar 14, 2015When using a child blueprint that calls a parent blueprints tick and its functions, The event is not being called if you package the project for shipping Win (32-Bit) Pictures of the Parent BP are ...
The 'Set Constrained Components' node doesn't set the physics constraint components correctly if used in the Construction Script
UE - Simulation - Physics - Jan 20, 2015The 'Set Constrained Components' node doesn't set the physics constraint components correctly if used in the Construction Script. ...
[CrashReporter] Crash in FAnimNode_StateMachine::Evaluate()
OLD - Anim - Aug 22, 2016This JIRA was created as a result of it being one of the top crashes occurring in 4.13 Preview 2 Error message: Access violation - code c0000005 (first/second chance not available) Source Context ...
Doing a scene capture of a particle off screen on a thread other than the game thread in a packaged game asserts/crashes
UE - Niagara - Feb 15, 2018From licensee: When building and running the package on windows or other platforms, the game stops at an Assert when a particle is being rendered (off screen) from a thread other than the game thre ...
[Submix][Recording] - Existing Sound Wave to Overwrite option has no effect
UE - Audio - Submixes - Jul 29, 2021This is an old bug that looks like it never made its way into JIRA. Adding for documentation. ...