Unreal Engine Issues

Number of “USkeleton::LinkupCache” could keep increasing

USkeleton class only performs Add or Empty operations on the LinkupCache array and has no Remove, so the number of LinkupCache can keep increasing in some cases (A description in Step to Reproduce s ...

Resetting Blueprint static mesh material switches it to WorldGridMaterial rather than the blueprint archetype

Disabling Grid ShowFlag also hides billboard sprites and volume outlines

The following odd behavior did not happen until UE 5.2, but happens in the latest UE 5.3. When the "Grid" show flag is disabled in the Level Editor Viewport, all billboard sprites and volume outlin ...

Landscape renders black when baking with GPU Lightmass

A user encountered an issue with Landscapes not rendering once baked with GPU Lightmass. The user was using Ray Tracing. If using normal CPU Lightmass baking, landscape remains the same. ...

Haptic Feedback doesn't work on DualSense devices (and never has)

The haptic feedback stuff is meant for VR devices, and has never worked with DualSense or any other console (afaik) that isn't a VR device. We technically could support this, but it would just be ...

Spawnable Skeletal mesh actors will have their Skeletal Mesh Asset shown as None when added to a level sequence

Default Context Mappings Clearing Out Custom Triggers on module load

This is happening because UEnhancedPlayerInput::UEnhancedPlayerInput is attempting to load the IMC asset, but if your triggers are defined outside the engine module then it would trigger a load of t ...

Motion vectors not generating correctly in build

Also tried using “show VisualizeTemporalUpscaler” and noticed the frames that have missing motion vector data showed up as pops in the “show VisualizeReprojection” part of the visualizer. ...

GAS: GameplayEffect with RemovalTagRequirements in networked play triggers FScopedActiveGameplayEffectLock ensure

Reported by multiple users. When in a networked session a GameplayEffect is automatically removed due to:a tag being added that's not allowed, or (TargetTagRequirements.RemovalTagRequirements.MustHa ...

Actor attached to child actor fails to serialize as part of map

Attaching other actors to a child actor (actor spawned by ChildActorComponent) fails to serialize correctly as part of the map. The attached actor loads as detached and resets its position back to w ...