Strange crash occurring from project When upgrading from 4.16 to 4.17

UE - Gameplay - Blueprint Compiler - Aug 2, 2017

There are a string of crashes that are occurring with UMG as the cause of the crash. This occurs when the project is upgraded from 4.16 to 4.17. With the project provided making any change to the B ...

[CrashReport] UE4Editor_Engine!FDistanceFieldAsyncQueue::ProcessAsyncTasks() [distancefieldatlas.cpp:824]

UE - Graphics Features - Jul 20, 2017

This is a common crash affecting users in 4.16. User Descriptionsremoving Inventory system form level.delete assets when was compiling shadersDeleting folderDeleting folder. Source Context 810 ...

[CrashReport] Mac crash - UE4Editor-AudioEditor.dylib!FSoundCueEditor::DeleteInput()

UE - Platform - Apple - Sep 14, 2017

This is an infrequent Mac crash that has occurred for users since 4.16. Users have not provided any descriptions of their actions when the crash occurred. There is no record of a similar callstack ...

[CrashReport] PhysX3PROFILE_x64!physx::Sc::BodySim::activateInteractions() [scbodysim.cpp:496]

UE - Simulation - Physics - Jul 19, 2017

This is a common crash affecting users in 4.16. The callstack is very similar to [Link Removed], which has previously been fixed. User DescriptionsTesting destruction of generated destructables. T ...

Distortion Displacement Track is empty in new level sequence using a distortion file with a framerate of 0

Docs - Samples - Aug 8, 2017

Distortion Displacement Track is empty in a new level sequence using a distortion file witha framerate of 0. ...

Build Error when using ENUM without 0 entry

UE - Foundation - Cpp Tools - UnrealHeaderTool - Nov 26, 2019

Bug in StringTemplate.cpp related to modulo operator in MaterialTemplate.ush (code fix provided)

UE - Rendering Architecture - Materials - Jun 25, 2024

Shader Template files like MaterialTemplate.ush do not submit previous chunks when encountering a `%` character, unless that `%` character is `%s` or `% {...} `. Because the error is happening ...

"Fix root motion initial rotation handling" commit breaks root motion completely

OLD - Anim - Dec 18, 2014

Enabling and processing root motion causes animation to rotate the wrong direction. Roll instead of Yaw. Pitch instead of roll etc. This error does not occur in UE 4.6. ...

BlendSpace DeltaTimeRecord.Delta can incorrectly be set to zero

UE - Anim - Runtime - Apr 19, 2024

It's possible for blendspaces to end up with an invalid delta time record because of how UBlendSpace::TickAssetPlayer modifies the time record.  This only seems to happen with specific settings:Axis ...

Metasounds - Using the Audio Component Play Node with a start timer other than 0 results in the Metasound ceasing to function

UE - Audio - MetaSounds - Dec 2, 2021

Metasounds cease functionality if called to Play with a different start time other than 0. This extends to the Metasound editor where pressing play to preview the sound also ceases to function. ...