Static meshes with auto-generated LODs can no longer share lightmaps between LODs

UE - Graphics Features - Feb 21, 2017

User report: With 4.15 using only auto generated LOD's static mesh LOD levels can't share computed lightmaps anymore. This cause severe memory increase and it's making lightmass build times way slow ...

Sequencer - Pressing Add Key on Rotation-Yaw increases the key value exponentially

UE - Anim - Sequencer - Apr 24, 2019

Not a critical bug but add unnecessary workload since the user found himself constantly checking Yaw values. ...

Crash on Build All Levels

UE - World Creation - Worldbuilding Tools - HLOD - Apr 7, 2022

Crash on Build All Levels after a HLOD warning. EXCEPTION_ACCESS_VIOLATION reading address 0x00000000000000f0 ...

Vehicle physics are resolving erratically and causing random jitter/flips in the Advanced Vehicle Template

UE - Simulation - Physics - Nov 16, 2016

When a vehicle is on an uneven surface, the physics that are handling where the wheels should be placed is resolving sporadically, causing noticeable jitters and sometimes flipping. Regression?: Ye ...

Wobbling effect on meshes

UE - Graphics Features - May 31, 2022

Weird wobbling rendering artifact are generated on the surface of the Mesh located far from the origin.  ...

Character Mesh Position Offset in Online Sessions

UE - Networking - Jun 12, 2017

If a client joins a session while the host is moving their character, the character's mesh will become offset on the client. Example Video: [Link Removed] Found in 4.16.1 and reproduced in 4.17 M ...

UnrealMathTest fails when compiled with VS2019

UE - Foundation - Cpp Tools - Oct 10, 2019

A crash or breakpoint is triggered when building UE4 with Project Files generated with -2019. Typeinfo.h was changed in MSVC v14.23 to just be typeinfo. ([Link Removed]) There is a pull request t ...

Crash When Opening Static Mesh After Enabling Forward Shading And Disabling "Support Stationary Skylight"

UE - Graphics Features - Apr 17, 2017

After enabling forward shading and disabling "Support Stationary Skylight" opening a static mesh in the static mesh editor will crash the engine. REGRESSION? Yes Crash Did NOT occur in 4.15.1 CL ...

Blueprint Projects can't make APK without compiled .so Error when packaging for Android with any Plugin Disabled

UE - Platform - Mobile - Sep 5, 2018

Blueprint Projects can't make APK without compiled .so Error when packaging for Android with any Plugin Disabled. Also seeing Gradle errors if SteamVR plugin is disabled. Setting min version to 14 ...

Opening Persona causes editor to crash on Linux

UE - Platform - Linux - Nov 17, 2016

Attempting to open a skeletal mesh or animation in Persona causes the editor to crash. Regression: Yes Working: 4.13.2 - CL 3172292 Broken: 4.14.0 - CL 3195953 ...