Unreal Engine Issues
Unreal Engine Issues
Invalid object while verifying cluster assumptions during ShooterGame replay with matinee actor
UE - Anim - Sequencer - Apr 21, 2021This seems to be caused by the matinee actor on Highrise and only appears to be reproducible in a packaged build of ShooterGame, not from the editor. See attached UDN for more information. ...
Memory Leak With NullRHI
UE - Rendering Architecture - RHI - Apr 21, 2021Editor freezes when force deleting a level created with Conversion Suffix
UE - World Creation - Worldbuilding Tools - World Partition - Apr 20, 2021Once force delete is initiated, editor was still non-responsive ~10 minutes later and had to be closed from Task Manager. Upon reopening the project, the level is still present in Content Browser an ...
Crash when adding a pawn that has a SetSenseEnabled node set to true on Begin Play and then playing the game
UE - AI - Apr 20, 2021When adding the SetSenseEnabled node to a Pawn and controlling another pawn that has an AIPerceptionStiumuliSource, the editor crashes. I tested using other senses such as Hearing and the crash occu ...
There is a moment of T pause when Post Roll Frames is enabled and snapping is enabled
UE - Anim - Sequencer - Apr 19, 2021When I turn off snap, the problem does not occur The problem does not occur in 4.24.3 and 4.25.4 Occurs in 4.26.2 and UE4main ...
Adding a new component to a parent class breaks child Blueprints
UE - Gameplay - Blueprint - Apr 16, 2021See UDN(308147): [Link Removed] ...
RemoveWindSource modifies game thread array while in a parallel for loop.
UE - Simulation - Physics - Apr 16, 2021FScene::RemoveWindSource is called from a parallel for loop, and concurrently deletes wind component pointers from the same game thread array causing crashes when the scene contains multiple wind so ...
Material cannot be set in MaterialInterface of NiagaraParameterCollection
UE - Niagara - Apr 16, 2021When MaterialInterface is added to UserParameter of NiagaraSystem, Material can be set in Properties. Also, in UE4main CL15988344, there is no MaterialInterface item in the NiagaraParameterCollecti ...
Nvidia Graphics Drivers cause editor menus to flicker and disappear after using the editor for an extended period of time
UE - Graphics Features - Apr 16, 2021This issue seems to be occurring on a variety of Nvidia cards. So far, I haven't seen any indication that it is affecting AMD graphics cards. The majority of the reports have indicating that the pro ...
Validation error in FSkeletalMeshSceneProxy::GetDynamicRayTracingInstances due to wrong LODSection.SectionElements count
UE - Graphics Features - Lumen - Apr 16, 2021The following condition is sometimes not met: LODSection.SectionElements.Num() == MeshObject->GetRayTracingGeometry()->Initializer.Segments.Num() ...