Unreal Engine Issues

Duplicating an Instanced UProperty Component copies a reference, instead of a "deep copy"

Duplicating a UActorComponent that has an Instanced UPROPERTY does not perform a deep copy of the instanced property. It appears to only copy a reference to the instanced object. Where as, performin ...

Dynamic Delegate with Return Value can't be set with BP Function

Convert CharacterBP to Spawnable in Sequencer cause crash

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BumpOffset Node Produces Incorrect Results When Texture Coordinate Index Is Not 0

When using the BumpOffset node, it will produce incorrect resultsi if the Texture Coordinate Index is not 0. Found in 4.20 CL# 4369336. 4.21 CL# 4613538, 4.22 CL# 4751672 ...

Objects with centered pivots become Actors instead of StaticMeshActors when imported via Datasmith

When selecting "affect pivot only" and choosing "center pivot" on 56 objects in 3DS Max 2019, 4 of them imported into Datasmith as Actors and not StaticMeshActors. This makes it seemingly impossible ...

Niagara System User Parameters Resetting After Closing the Editor

Niagara System user paramemters will reset upon restarting if they are used in a Blueprint. This also occurs to the system if you move the blueprint after making changes then pressing Ctrl+Z.  Foun ...

Incorrect net mode during EndPlay in PIE

Actor GetNetMode() can return the wrong value in EndPlay when the PIE world is being shut down. ...

Dragging a BP variable into a category can produce inconsistent results

The drag-onto-category operation is assigning the prettified category name, not the actual category name, resulting in variables that are not actually in the same category, even though they appear t ...

Left and Right eye render Ambient Occlusion differently

Ambient Occlusion appears to render differently in each eye when using the oculus rift. This give the user a cross eyed feeling ...

Double-clicking a level asset in the content browser loads the level with EWorldType::Inactive