Unable to pass TMap or TSet as a parameter for a UFUNCTION

UE - Foundation - Core - Mar 2, 2017

Attempting to pass a TMap or TSet into a UFUNCTION as a parameter causes a compilation error. Removing the UFUNCTION declaration works. Error messages:2>D:\Unreal Projects\Main\MyProject14\Source\M ...

Geometry collection components report incorrect mass for character movement components

UE - Simulation - Physics - Sep 24, 2024

A player cannot move heavier GC objects even if we have a valid setup due to the GC not reporting the correct mass.  ...

Widget Component blurred by motion when attached to camera

UE - Graphics Features - Apr 10, 2019

Widget component appears to blur while in motion. When compared to other objects in the same frame of reference the widget component is the only one blurring. Regression: Yes This appears to have ...

If setting isActive of Camera's Spawn Track to false and binding the camera to Camera Cut Track, the player camera moves to an incorrect position after the sequencer finishes playing.

UE - Anim - Sequencer - Jun 16, 2020

If the binding itself registered in the camera cut is incorrect, the position of the camera after the sequencer ends becomes fraudulent. ...

User project crashes after changing struct

UE - Gameplay - Blueprint - Aug 10, 2017

PseudoVolumeTexture inverted on GL

UE - Platform - Mobile - Oct 16, 2018

UDN report: Hi, This is not really a question, but I just wanted to point something. It seems that the PseudoVolumeTexture method in common.ush is not working the same way between DirectX and Ope ...

Importing .glb file results in crash

UE - Editor - Content Pipeline - Import and Export - Nov 13, 2019

When importing a .glb file from Blender, the editor crashes. The user has been able to import other .glb files, but ran into an issue with the one provided being unable to be imported.  ...

RetainerBox may cause memory leak

UE - Editor - UI Systems - Slate - Aug 20, 2020

Essentially, this memory leak should be counted in the UI section, but it is counted in the SceneRender section. This seems to be due to the behavior of MemStackAllocator and FixedSizeAllocator. Th ...

Crash on project startup due to certain Skeletal Mesh being accessed

UE - Anim - Runtime - Jan 6, 2021

If you open the 6 assets that were close unexpectedly it will crashEnemy (Blueprint), Player_BP (Blueprint) and ThirdPersonGameMode (Blueprint) it crashesThe texture and Projectile_Base (Blueprint) ar ...

Separate translucency rendering and material BumpOffset UV issues

UE - Rendering Architecture - Oct 20, 2023

It appears as if the primary screenpercentage is being sent as the screen size to separate translucency materials, even though separate translucency has its own screenpercentage (r.SeparateTransluce ...