Serialized Blueprints containing MIDs do not load correctly in packages.

UE - Rendering Architecture - Materials - May 8, 2024

This issue is an easy fix but raises a different problem which is likely ingrained in UE, which is that MIDs should not be serialized out and should always be transient. Unfortunately we are in a po ...

[CrashReport] UE4Editor_MediaAssets!UMediaPlayer::GetPlaylistRef() [mediaplayer.h:890]

Media Framework - Jul 19, 2018

Comment from user:double clicked on a media player asset that I just cloned 880 /** 881 * Get the current play list. 882 * 883 * @return The play list. 88 ...

[CrashReport] UE4Editor_Sequencer!FSequencerEdMode::CleanUpMeshTrails() [sequenceredmode.cpp:186]

UE - Anim - Sequencer - May 30, 2017

This is a top crash occurring in the 4.16 release. Despite the callstack occurring in Sequencer, many users are experiencing this crash while working in UMG. User Descriptionsscaling track in widge ...

[CrashReport] UE4Editor_Engine!FExpressionInput::Connect() [materialshared.cpp:129]

UE - Graphics Features - Jan 26, 2018

User comment from crash group:Saving a material layer blend asset. ...

If a HUD blueprint and a UMG blueprint share a material. The material will not show up in Standalone

UE - Editor - UI Systems - Jun 8, 2016

If a HUD blueprint and a UMG blueprint share a material. The material will not show up in Standalone Note: Sample project is attached ...

Instance Static Meshes spawned at Runtime do not have collision

UE - Gameplay - May 8, 2015

Spawning an Instance Static Mesh at runtime does not have collision. This issue appears only in 4.8 Preview 1 and the 4.8 Release branch (tested on CL-2540862), but is fixed in Main Branch as of Ma ...

Rich text formatting is disabled on Linux

UE - Platform - Linux - Aug 1, 2016

Rich text does not display on Linux. A Warning: Rich text formatting is disabled message appears where rich text would normally be displayed. I do not see this issue on Windows. REGRESSION: Yes Wo ...

Selecting an object while simulating will stop the objects physics

UE - Simulation - Physics - Aug 28, 2016

Selecting an object that is simulating physics while the simulating will cause that object to stop simulating physics. Moving the object with the widget and releasing will cause the physics to begi ...

Vehicle wheels have no collision on HTML5

UE - Platform - Mobile - Dec 2, 2016

A Wheeled Vehicle's wheels do not have collision when packaged into an HTML5 game. Regression?: Yes This issue did not occur in 4.13.2 Note: This is currently blocked from testing in Main as the P ...