Unreal Engine Issues

Groom assets can no longer be created without curves data

It used to be possible to create an empty Groom assets without an Alembic file. However, this is no longer possible because curve data is required This workflow is useful to create grooms that onl ...

FInstancedStruct member uproperties are not cached when "Generate Optimized Blueprint Component Data" is enabled

A licensee has encountered an issue where their FInstancedStruct isn't being gathered into CachedPropertyData when "Generate Optimized Blueprint Component Data" is enabled. The changes in [Link Remo ...

[AI] SmartObjectPersistentCollection produces errors during Map Validation

SmartObjectPersistentCollection in 5.6 and later now give errors when the map validator runs due to referencing spatially loaded actors. This was working per licensee in 5.5. There was a change from ...

DataAsset blueprints have the wrong NativeClass

UDataAsset's constructor assumes itself to be the native class, and caches that value for use by the asset registry. However, if the data asset type is defined in a blueprint (i.e. subclassing UPrim ...

LWCLength precision issues

Large World Coordinates tile-offset position data can result in artifacts far from the world origin, when using it as input for mathematical distance field generation. This can be mitigated by demot ...

When Adding Custom Bindings, get ensure that "Multiple persistent shared references detected for Sequencer..."

Ensure: Error    LogOutputDevice      Ensure condition failed: SequencerRefCount == 1 [Link Removed] [Line: 967]  1. Error    LogOutputDevice      Multiple persistent shared references detected f ...

LevelSequenceActor transform offset for Sequencer lost on value changed

Toggling Lock, Pin, Ignore on subsequences or adding new transform key on a character inside a subsequence the Actors lose the LevelSequenceActor transform offset they have at preview and go back to ...

Can not paint vegetation with brush diameter of 1m or less

Control Rig Box Selection Innacurate

When useing marquee select on controls in the rig, their on screen size determines how likely they are to be included in the selection which isn't a reliable enough method for animators. Our workaro ...

Sequencer causes 3DWidget on BP vectors to snap to Actor when active

When we have Vectors in BP with Show 3D Widget enabled, the Transform Widget would always snap back to the Actor after we move the 3D Widget in-world. [Link Removed] Removing the _DaySequenceActor ...