[CrashReport] Linux Crash in FActiveSound::GetWorld()

UE - Platform - Linux - Aug 11, 2017

This 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 ...

FBX skeletalmesh animation import use an integer for sample rate

UE - Editor - Content Pipeline - Import and Export - Sep 11, 2020

Integer sample rate is not playing well with 23.976(NTSC/24) sample rate, the curve get resample at 30Hz in that case and we loose precision. We need to support FFrameRate sample rate to get accura ...

Dithered LOD Transition Tooltip within the Material Editor is Misleading

The tooltip states, "Wether the material should support a dithered LOD transition when used with the foliage system." It is my understanding that the foliage system uses LOD dithering by default, a ...

Deploying a project with Portrait orientation will appear stretched on the Nvidia Shield Tablet

UE - Platform - Mobile - Mar 3, 2015

When I deployed a first person template project to an Nvidia Shield Tablet with Portrait Orientation enabled, The screen appeared stretched and the analog stick were unable to be used. Tested on t ...

Editor crashes on compile with no warning when trying to access information from a "Slot as Canvas Slot" node on tick that has not been set yet by begin play

UE - Editor - UI Systems - Jul 1, 2015

If a user creates a widget variable that is set on begin play and then tries to get information from that widget via the "Slot as Canvas Slot" node on tick the editor will crash. This appears to hap ...

SpeedTree assets cannot be imported via Python automated import

UE - Editor - Content Pipeline - Import and Export - May 7, 2020

Licensee reports via UDN that automated import via Python of SpeedTree assets does not work The issue is that USpeedTreeImportFactory::FactoryCreateBinary() tries to generate a UI dialog, which is ...

Skeletal mesh merging ignores clothing

UE - Simulation - Physics - Character - Mar 3, 2020

Skeletal mesh merge doesn't support clothing. Looks like we should just be able to duplicate the clothing assets, clear the binding data and use ClothingAssetUtils::GetMeshClothingAssetBindings to p ...

Assert when tracing animations with Linked Anim Graphs

UE - Anim - Runtime - Oct 19, 2021

An assert fires related to the node index for the linked animgraph node being the same as the node index for the root node in the linked anim graph. Can be worked around by commenting out the check ...

ProcessPriority performance consideration with Generation 12 Intel CPUs

UE - Foundation - Cpp Tools - UnrealBuildTool - Oct 26, 2022

It has been noted that the default BelowNormal process priority set in UnrealBuildTool is not handled well with the Gen 12 Intel CPUs as processes are only scheduled on the E-Cores which causes degr ...

If pasting a section causes an overlap, don't allow it if the track doesn't allow overlapping sections

UE - Anim - Sequencer - Nov 4, 2024

Binding lifetime sections aren't meant to overlap, but duplicating one, or pasting one can cause them to overlap, triggering an ensure. Duplication and copying and pasting are typical actions, so th ...