Unreal Engine Issues
Unreal Engine Issues
Editor hang calling UMoviePipelineBlueprintLibrary::UpdateJobShotListFromSequence
UE - Anim - Sequencer - MRQ - May 14, 2025Within UMoviePipelineBlueprintLibrary::UpdateJobShotListFromSequence we are experiencing an editor freeze when launching an MRQ render of sequences where a camera is unable to find a valid possessab ...
Level editor viewports crash when deleting actors after a layout change
UE - Editor - Workflow Systems - Apr 18, 2022Reported by a customer while testing USD import. See additional URL ...
Shadows Replicated to Second Player while in Multiplayer PIE using Single Process
UE - Graphics Features - Jun 27, 2016When running multiplayer PIE in the Third Person Example project, if player one is shadowed, the second player also becomes shadowed. This almost seems expected as it is being run as a single proce ...
OnRep_ReplicatedAnimMontage causes popping when montage ends
OLD - Anim - Oct 8, 2016UAbilitySystemComponent::OnRep_ReplicatedAnimMontage doesn't handle some edge cases when stopping the montage when blending is involved. Namely, it's possible on a client (due to latency, etc.) that ...
Duplicated bp components incorrectly double their transforms when created
UE - Gameplay - Blueprint - Jan 4, 2017Add a light to a blueprint Move it away from the origin Right click on the component and duplicate it Notice that the new light is now a child of the previous light and that its transform is now in ...
[CrashReport] UE4Editor-MetalRHI.dylib!FMetalRenderPipelineDesc::CreatePipelineStateForBoundShaderState()
UE - Graphics Features - Aug 10, 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: SEGV_MAPERR at 0x3 Most recent us ...
Undoing the pasting of a copied node from the Blueprint Diff tools causes an access violation crash
UE - Gameplay - Blueprint Editor - Aug 24, 2017The editor crashes with an Access Violation if a node that was copied and pasted from the Blueprint Diff tools is removed via an undo. Regression?: No This issue also occurred in 4.16 Branches tes ...
Scroll bar thickness is unaffected when set below 4
UE - Editor - UI Systems - Apr 9, 2019Scroll bar thickness is unaffected when set below 4. There appears to be a minimum size in place that prevents the scroll bar from being set to a size lower than 4 ...
Editor stalls on Mac after key up, mouse up
UE - Platform - Apple - Dec 19, 2019UDN user reported a performance hit on Mac with the latest Hotfix release when the user is interacting with the editor either through keyboard or mouse input. This performance hit is noticeable whe ...
[CrashReport] Couldn't find Shader TShadowDepthVSVertexShadowDepth_OutputDepthPositionOnly
UE - Graphics Features - Sep 7, 2017This is a common crash that has occurred since at least 4.16. The one user comment mentions a plugin, but many of the crashes occur on vanilla builds. User DescriptionsVaTexAltlas plugin enabled i ...