Unreal Engine Issues

Blueprint processing is heavy in PIE since 4.26

As the attached image shows, there is no problem in 4.25.4, and the process is noticeably slower in 4.26.1. Also, there is no problem in Standalone. The problem occurs only in PIE. ...

Chaos-enabled projects will disable Post Process Volume with sphere tessellation of 4 or higher

Volumetric Translucent Shadow does not work

SkyAtmosphere is not displayed in ES3.1 Preview

Atmospheric Fog is not displayed as well. ...

Crash when opening a sequencer that has an actor with spring controller registered and play in editor

During end play in editor, there is an access violation referencing WorldSettings from SpringBone.  In the attached project, the character registered in the sequencer uses the "SpringController" no ...

Fountain emitters are constantly showing errors in the timeline and are not displaying correctly

This issue is not present in 4.25.4 You can also avoid the problem if the LoopBehavior of the EmitterState is Multiple and LoopDelay is enabled. [Image Removed] It seems to be a binding of certai ...

Precompile occurs in Niagara when Standalone is started, increasing load time.

In 4.26.1, if you remove the collision module from NiagaraSystem, the Precompile will not occur. ...

Incorrect behavior when copy-paste repeatedly in the sequencer subscene track

This issue is different for the first and second behaviors, which seems confusing when working. ...

Placing WaterBody makes sub-levels that should have no effect dirty

This issue occurs when using the Landscape Streaming Proxy. ...

Incorrect AO rendering when that using SSGI.HalfRes

This problem seems to have started from 4.26. Also, setting r.DiffuseIndirect.Denoiser=0 will increase the noise but invisible the rendering in problem. ...