Skeletal Meshes do not work properly on Open GL ES 3.1 on Xiaomi Redmi 6

UE - Platform - Mobile - Oct 30, 2018

Skeletal meshes do not render or animate properly on the Xiaomi Redmi 6 (PowerVR GE8320) when using OpenGL ES3.1. This issue changed a bit from 4.19 to 4.20. In 4.19, the skeletal mesh seems to of ...

Data Asset Deserialization crash after upgrading 4.19.2 to 421.1

UE - Foundation - Core - Feb 7, 2019

The User has provided an extensive log of their code base setup, and the process leading up to when the Assert occurs. "Our game mode & player state FSM are setup in a data driven manor using UDa ...

Actor references in Level Blueprint show an incorrect display name after converting the project from 4.6.1 to 4.7 Preview or 4.8

UE - Gameplay - Blueprint - Jan 26, 2015

Actor references in Level Blueprint show an incorrect display name on their nodes after converting the project from 4.6.1 to 4.7 Preview or 4.8. Reproduced in 4.7.1 Preview 4 and in Main (Promotabl ...

[Interchange][gltf] Imported animation are all 1 frame long.

UE - Editor - Content Pipeline - Import and Export - Jan 27, 2025

All the imported animation only contain one frame. If the file contains in archive are imported in a gltf web viewer we can see animation are playing.  [Link Removed] [Link Removed] https://foru ...

Constant Crashes on OS X 10.10.1

UE - Platform - Apple - Dec 15, 2014

User (Omri) on Mac running OS X 10.10.1. on MacBook Pro (17-inch, Early 2009 Experiencing Crash. Cannot reproduce. Crash Reporter: N/A Callstack: MachineId:1E07B9CE2F4554A7C3F421A9DD97AFB5 EpicAc ...

Setting PHYSX_MEMORY_STATS to 1 prevents the Engine from being built successfully.

UE - Simulation - Physics - Mar 9, 2015

If #define PHYSX_MEMORY_STATS 0 is set to 1, the Engine will not build successfully. The build fails with the message: error C2338: FPhysXAllocationHeader size must be less than 16 bytes. ...

Imported Maya animation seems to be 1-frame off in Unreal

OLD - Anim - Apr 5, 2016

A licensee reported this issue on UDN. They are seeing a discrepancy with animations imported from Maya. In this case, they appear to be off by 1-frame. We've talked about this on Slack and I know ...

Editor UI lightens when r.HDR.EnableHDROutput is set to 1

UE - Graphics Features - Nov 15, 2017

When console command r.HDR.EnableHDROutput = 1 is used, the entire engine UI becomes lighter or more washed out / desaturated, as shown in attached screen shots. Confirmed this bug is not present i ...

Select Node not supported in AnimGraph, but still remains a selectable option

OLD - Anim - May 18, 2015

In the answer provided by the developer for AnswerHub question, "Select Node" is not supported in the AnimGraph. However, the user is still able to select and add this to the AnimGraph which is caus ...

Destructibles are not rendered correctly when fractured if Support Compute Skincache is enabled

UE - Simulation - Physics - Destruction - May 8, 2018

The rendering of the fractured pieces of a destructible is incorrect when Support Compute Skincache is enabled. The physics of the fractured mesh simulates correctly but the pieces do not render pro ...