Significant editor slowdowns when moving blueprinted actors while having a different complex blueprint open

UE - Gameplay - Blueprint Editor - Jun 7, 2021

A Blueprinted actor's construction script time can be affected by the complexity of an opened level Blueprint. ...

Pasting timeline components into another actor and then choosing "cancel" on fix self context function references results in a broken state

UE - Gameplay - Sep 13, 2021

upd. Regression was checked on //UE4/Release-4.26 CL 15973114, issue was reproduced. Regression - No ...

LODbias settings appear to have no effect when specified by GPU on android

UE - Platform - Mobile - Oct 3, 2019

When setting the LODbias via the device profile for a specific Android GPU it does not appear to have an affect on the textures when run on the device ...

Shader Complexity not working correctly on Deferred Decals

UE - Graphics Features - Sep 3, 2020

If you place a deferred decal in the world and then set the view mode of the viewport to "Shader Complexity", the decal doesn't affect the complexity value. ...

Image Media Source does not display properly on Mobile

Media Framework - Nov 17, 2021

Image Media Source does not display properly on Mobile Regression Unconfirmed, can't check issue in 4.26, because project can't be opened on that version. ...

Property Coloration isn't supported for Nanite

UE - Graphics Features - Nanite - Sep 11, 2023

Property Coloration View Mode is not supported by Nanite. (Left cube is Nanite and isn't affected by the Property Coloration view mode) [Image Removed] ...

When Niagara is set to DesiredAge in Sequencer, the processing load increases after play

UE - Niagara - Cinematics - Jun 3, 2021

This does not happen in 4.25.4. It has been confirmed to occur with 4.26.2 and UE4main. After playback is complete, a large amount of stalls can be seen in Insight. ...

Texture Sample DI does not work on Niagara Parameter Collections

UE - Niagara - Nov 8, 2023

Texture sample DIs no longer work when used with Niagara Parameter Collections. This seems to affect Volume Texture DIs based on customer reports, but I have not confirmed this.  ...

Geometry Collection behavior does not change when changed by BP

UE - Simulation - Physics - Destruction - May 2, 2022

Reproduced 6/6 times. This seems to affect all "Set" functions for Geometry Collection Components, such as Setting Object Type from Static to Dynamic, or changing Collision Type. ...

Splitting a struct pin on a function node does not display tool tips on resulting struct member pins

UE - Gameplay - Blueprint Editor - Sep 15, 2021

Splitting a struct pin on a function node does not display tooltips for the resulting struct member pins.  upd. Regression was checked on //UE4/Release-4.26 CL 15973114, issue wasn't reproduced. Re ...