During blueprint reparenting SimpleConstructionScript subobject unmodified values are retained as modified values

UE - Framework - Blueprint Editor - Nov 27, 2024

When reparenting blueprints and both the old and new parent blueprint contain a subobject but with different values on it, the reparented blueprint doesn't correctly inherit values from the new pare ...

Memory Increase with mouse over Content Browser with AnimBP visible

UE - Editor - Content Pipeline - Content Browser - Aug 12, 2016

Memory Increase with mouse over Content Browser with AnimBP visible ...

Crash on adding elements to a TMap property

Tools - Jul 25, 2019

Adding elements to a TMap<int32, int32> causes the editor to crash if the TMap has a default value associated with it. Tested in 4.22 (CL - 4753647), 4.23 (CL - 7445012), 4.24 (CL - 7605614) ...

Overriding a struct member field's default value on a BP-added component in a BP asset will no longer allow the user to edit that struct member on instances of that BP's component if the member is deprecated.

UE - Framework - Blueprint - Oct 19, 2023

Properties that are deprecated are (incorrectly) not currently being propagated to instances by the duplication logic that we use to instance BP-added components as part of Actor-based BP constructi ...

Water is missing or appears in wrong places due to incorrectly rendered WaterInfoTexture.

UE - Graphics Features - Jun 16, 2025

Water is missing, appears in strange blocks, or appears in wrong places due to incorrectly rendered WaterInfoTexture. The WaterInfoTexture is part of the WaterZone actor. ...

Adjusting transform of a mesh with LODs causes LODs to flicker

UE - World Creation - Worldbuilding Tools - Foliage - Jun 3, 2015

If a hierarchical instanced static mesh has LODs and is scaled in a blueprint, the mesh will rapidly switch between LODs, causing a flickering effect. Note: This only seems to occur if the camera ...

Calling a child's child in a child blueprint from a spawn actor from class node that is being called back to the child causes an error

UE - Gameplay - Blueprint - Jun 29, 2015

Calling a child's child in a child blueprint from a spawn actor from class node that is being called back to the child causes an error. Basically, when using the spawn actor node referencing the chi ...

Grandchildren of UDataAsset are not properly registered by the Asset Manager

UE - Gameplay - Sep 19, 2017

Any child class of UDataAsset (parent) will properly be picked up when the Asset Manager's Asset Base Class" field is set to the appropriate class. However a grandchild class (Child) with the same ...

ARCore Non-AR Camera inherits AR Camera rotation

UE - Platform - XR - Jul 25, 2018

When transitioning from AR map/pawn to Non-AR map/pawn the direction the phone is facing is applied to Non-AR pawn. Only occurring on Android/ARCore Also tested in Main CL #4229747 Tested with Pi ...

Collision Problems on Meshes with Collision Complexity Setting UseComplexAsSimple

UE - Simulation - Physics - Dec 20, 2018

Collision does not appear to work properly on a static mesh that is set up with UseComplexCollisionAsSimple. ...