Unreal Engine Issues
Unreal Engine Issues
[CrashReport] Linux Crash in FActiveSound::GetWorld()
UE - Platform - Linux - Aug 11, 2017This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: SIGSEGV: invalid attempt to write ...
Async Load Primary Asset Class node fails in packaged build
UE - Gameplay - Sep 28, 2017The Async Load Primary Asset Class node returns an invalid class for a packaged project. This does not occur in PIE / Standalone (calling the node does return the expected primary asset class) Reg ...
Restore State for Make MovieSceneSequencePlaybackSettings Not Resetting Sequencer State Appropriately
UE - Anim - Sequencer - Oct 3, 2017Restore State should have an affect on sequencer. The animation snaps back to its starting point even when this option is not set if played in PIE. If you drag in the level sequence in the editor an ...
Lightmass crashes when lighting is built with material that has "Cast Shadow as Masked"
UE - Graphics Features - Oct 4, 2017Lightmass is crashing when using a material that has "Cast Shadow as Masked" set to true in its properties. Found in 4.18 P3 CL#3676890 Unable to reproduce in 4.16.3 CL# 3561208 and 4.17.2 CL#365 ...
VisibleAnywhere specifier doesn't prevent components from being edited in property windows
UE - Gameplay - Blueprint - Oct 17, 2017Using the VisibleAnywhere specifier in a UPROPERTY declaration does not prevent a Component's properties from being edited in property windows. This conflicts with the description of this specifier ...
Component hierarchy is reset for a Blueprint instance's newly added components if root is created in C++
UE - Gameplay - Blueprint - Feb 7, 2018When a Blueprint is based off of a class that has its root component defined in C++, any components added to an individual instance of a blueprint reset their hierarchy so that they are always attac ...
Can't set Event replication settings when delegate output pin is connected
UE - Gameplay - Blueprint Editor - Feb 19, 2018User Reported Bug Replication Settings no longer editable after event delegate is connected. Doesn't seem to affect functionality, only UI. (replication settings stay as set before plugging delega ...
Curl Noise Force Not Applying to Niagara Emitter
UE - Niagara - Jul 30, 2018Curl noise force will not affect a Niagara particle regardless of strength. Current work around is to disable then re-enable "apply forces" under "solve forces and velocity" Found in 4.20 CL# 4233 ...
Additives using Frame From This Animation as the Base Pose Type fail to retarget correctly
UE - Anim - Rigging - Retargeting - Feb 13, 2025Additive animations that use a frame from their own sequence as a base pose are initially broken when retargeted. Users have to refresh the properties that select the base pose in order to fix the ...
Unreal Editor crash on Datasmith import with VrayBlend Materials
UE - Editor - Content Pipeline - Datasmith - Importer - Jun 16, 2020It seems like VrayBlend materials are crashing the Engine when importing them with Datasmith. This is a regression from 4.24.3 (CL-11590370) where the file imported successfully. This was reported ...