Persistent Local Booleans do not serialize with CPF_SaveGame

UE - Gameplay - Blueprint Runtime - Nov 30, 2020

A persistent local boolean will not serialize even though it is marked with CPF_SaveGame, when other types will (such as an integer).  [Image Removed] [Image Removed] ...

Attaching scene component with "SnapToTarget" overrides relative transform on client

UE - Networking - Dec 15, 2020

If received in the same update on a client, a replicated attach with attachment rule "SnapToTarget" will overwrite any replicated changes to the relative transform. Additionally, once a scene compon ...

Selecting multiple actors with differing DataTableHandles causes data loss

UE - Gameplay - Jan 4, 2021

The data table customization (and probably others) tries to aggressively clear out row references that are not valid in the table they point to. This breaks when selecting multiple actors or objects ...

Cast enum to byte could occasionally break cook/resave in level BP

UE - Gameplay - Blueprint Compiler - Aug 27, 2020

 Workaround:The blueprint macro had a cast from the enum to an int and that was causing the issue, getting rid of the cast and just returning the enum and then changing all the places that were usin ...

Intermittent fatal assert in GetArchetypeFromRequiredInfoImpl for an object with RF_NeedLoad

UE - Gameplay - Components - Mar 25, 2021

The archetype instance for the ProceduralMeshComponent's physics data object is not flagged as such, so the event-driven loader does not designate it as a preload dependency, which may be putting us ...

Invalid object while verifying cluster assumptions during ShooterGame replay with matinee actor

UE - Anim - Sequencer - Apr 21, 2021

This 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. ...

Static mesh components spawned in the UCS along a spline require lighting to be rebuilt after a map reload.

UE - Gameplay - Components - Jun 17, 2021

Seems to be somehow related to components being instanced in the Construction Script according to a spline. The transforms are slightly off by more than 1.e-2f. They are reconstructed on load with a ...

USD Material variant selection is not reflected on mesh

UE - Editor - Content Pipeline - Datasmith - Importer - Jul 22, 2021

The material is expected to change from red to green. ...

Blueprint Viewport Grid Toggle doesn't work

UE - Editor - Workflow Systems - Aug 18, 2021

Artifact on DOF foreground

UE - Graphics Features - Mar 22, 2022

Object blured in foreground with blur radius larger than there size cause artifact ...