Unreal Engine Issues

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. ...

Inserting before a FSlateImageRun twice will cause crash

NiagaraSystem with EniagaraGpuComputeTickStage::PostInitViews rarely crashes due to multi-thread race conflicts

NiagaraSystem with EEiagaraGpuComputeTickStage::PostInitViews should not have bSupportsParallelGDME because of possible multi-threaded contention, but FNiagaraSystemInstanceController::GetGpuCompute ...

Memory Leak caused by auto save files

Ray traced shadows appear even after the mesh is hidden

bCastHiddenShadow flag in UPrimitiveComponent doesn't affect ray tracing shadows ...

Physics Thruster has no effect on destruction mesh

Physics Thruster actor does not affect destruction meshes that it is attached to. ...

Rendering glitch when launching on Android

https://answers.unrealengine.com/questions/462957/rendering-glitch-when-launching-on-android-ue413-p.html I was able to repro it on Nexus5 with Android 5.1.1. ...

Copy/paste of multiple components does not preserve component names or attachment hierarchy

Copy/pasting scene components between blueprints loses: 1. The component name. 2. The parent/child hierarchy. It keeps the offsets, which is helpful. [image: Inline image 1] ...

Cannot Delete Landscape with World Partition enabled

If you delete all the LandscapeStreamingProxies under the landscape object the parent landscape object can be deleted. Not a regression checked in Version: 5.1.0-23058290+++UE5+Release-5.1 ...

[CrashReport] Crash on Linux - FShaderCompilingManager::LaunchWorker()

This is a common crash affecting users on Linux. No additional information is available. ...