MoviePipeline: Can't inherit from UMoviePipelineSetting in BP due to PURE_VIRTUAL

UE - Anim - Sequencer - Oct 28, 2021

IsValidOnMaster/IsValidOnShot need to be BlueprintNativeEvents with a default C++ implementation and allow derived classes to override the function. This is needed so that you can create custom set ...

Third Person C++ Template Package Fails to Launch with Assert Error Window

UE - Anim - Runtime - Apr 7, 2022

Occurs 3/3 times. Third Person C++ Windows package crashed on launch with Assert Error Window (see attached screen capture) Regression occurs: Repro'ed in //UE4/Release-4.27 EGL Live @ CL18429761 ...

LiDAR assets do not render in after relaunching the engine

UE - Editor - Content Pipeline - Datasmith - Aug 15, 2023

LiDar point clouds are failing to render when saving and relaunching the project This issue is occurring in //UE5/Release-5.3 @ CL 26560699 This issue is occurring in //UE5/Release-5.3 @ CL 2600198 ...

Cannot set background color for UI Domain material preview

UE - Editor - UI Systems - UMG - Dec 18, 2023

CSM Shadows disappearing at larger coordinates with different FOVs

UE - Graphics Features - Shadows - Apr 5, 2024

Cascaded shadows disappear at some FOVs when far from the world origin. This behavior was not present in 5.2. Also found in CL: 32690246 in Release-5.4 ...

Enhanced Input Pressed Trigger firing twice

UE - Gameplay - Input - Apr 14, 2024

GetTriggerEvent() in a function bound to an enhanced input action in C++, returns "Triggered" when bound to the "Started" trigger event. ...

Crash during garbage collection when container UPROPERTIES specify raw interface pointer element types without TScriptInterface wrapper

UE - Foundation - Core - Oct 1, 2024

When a UPROPERTY() TMap or TArray has raw interface pointers as element type, the garbage collector tries to handle them and crashes. For raw interface pointers without a container, UHT generates a ...

Foliage HLODs don't respect "Disallow Nanite"

UE - World Creation - Worldbuilding Tools - HLOD - Jan 15, 2025

We have a level with foliage meshes that has been placed via the foliage system. We want to place these into HLOD Layers so that we can disable nanite, and thus enabling the imposter LODs at a dista ...

Trigger Volume Blocks First-Person Template Projectile

UE - Simulation - Physics - Nov 2, 2015

When playing in editor, if you fire your weapon at a trigger volume, the projectiles will bounce off of the volume, regardless of the fact that the collision is set to Query Only. This collision als ...

Importing multiple SpeedTree assets that use the same texture will not assign correctly

UE - Graphics Features - Sep 25, 2015

When importing multiple SpeedTree assets that use the same material will cause one to import blank (black) materials and assigned. This happens when importing into the same folder, however, if impor ...