Unreal Engine Issues

Ensure condition failed : loading sublevels containing reflection captures, UpdateAllReflectionCaptures may be called twice

If sublevels containing multiple reflection captures are loaded in consecutive ticks and the execution timing of UpdateMaxCubemaps on rendering thread is delayed, UpdateAllReflectionCaptures will be ...

Managed particle systems can fail to be removed from managed ticking when pending registration

UParticleSystemComponent::SetComponentTickEnabled can fail to disable ticking due to IsTickedManaged not checking if the particles system is pending registration. The crash was in part because of c ...

ios threads freeze for almost one second when notifications pop up

see the UDN .Setting bOtherAudioPlayingNow to always false can workaround the problem, but it's better to have a more robust solution. ...

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. ...

Enabling Window Animations causes drop down menus to flicker and be displaced

I tested this with 3 Nvidia Drivers to see if I could find a driver that works properly. I tested the following Game Ready drivers Version 457.30, 461.40 and the latest, 461.72. The flicker occurred ...

[CrashReporter] UE4Editor-Renderer!static void RenderViewFamily_RenderThread(class FRHICommandListImmediate & const, class FSceneRenderer *) [SceneRendering.cpp:3619]

User comment: "...can't launch anything as standalone, only simulate..." Generated from CrashReporter ...

Volumetric Translucent Shadow does not work

Niagara Simulation Stage + DynamicMaterialParameters crash

deleting the code "&& SimulationStages[i]->bEnabled" in UNiagaraEmitter::GetScripts will bypass the problem [Image Removed] ...

Executing r.setres does not render correctly when Orientation of Display is Portrait on Windows PC

This issue will display correctly in Portrait if you don't specify a resolution, but using r.setres will display it incorrectly. ...

Assertion with Geometry Collection when play in simulate mode

Error message:Assertion failed: !HasAttribute(Name, Group) [File:D:\CHAOS\Engine\Source\Runtime\Experimental\Chaos\Public\GeometryCollection/ManagedArrayCollection.h] [Line: 121] ...