Complex collision mesh might lose its collision in the editor

UE - LD & Modeling - Modeling Tools - Mesh Editing - Feb 18, 2020

This is affected by loading order. In the case, display mesh was loaded firstly and try to build collision mesh form complex collision mesh asset. But the collision mesh didn't finished to make Ren ...

Actor variable type has distractingly large tooltip comment

UE - Gameplay - Blueprint Editor - May 4, 2021

Actor.h has a large comment that describes the entire lifecycle of Actors, which was written for the API website (https://docs.unrealengine.com/en-US/API/Runtime/Engine/GameFramework/AActor/index.ht ...

LLM PlatformProcessMemory calculation ignores VRAM, and its calculation of how much memory is used by the process is too low

UE - Foundation - Sep 29, 2023

FLowLevelMemTracker::TickInternal() the ELLMTag::Total (and therefore ELLMTag::Untracked) memory amounts are calculated based only on the result of FPlatformMemory::GetStats(), which on the Windows ...

Restricted Gameplay Tags cannot be added

UE - Gameplay - Mar 15, 2024

The Gameplay Tags settings have the option to set up restricted tags as described in the documentation. Prior to 5.3, the UI correctly supported creating new restricted tags as described in the old ...

Edge Screen Artifacts when calling Widget Blueprints to the Viewport and toggling Fullscreen Mode

UE - Editor - UI Systems - Apr 6, 2016

Widgets called to the Viewport with Fullscreen enabled, will eventually cause artifacts to appear on the edges/borders of the screen. There is currently a forums post with multiple users reporting ...

Stationary Directional Lights not Rendering Dynamic Shadows on Mobile

UE - Platform - Mobile - Jan 21, 2016

As the title suggests, dynamic shadows on mobile when using a stationary directional light are not appearing at all when deployed to the device or when viewed in the mobile previewer. The odd part ...

Window Size does not Change to iPhone 6 presets when in Standalone Game or Mobile Preview (PIE)

Tools - Apr 12, 2016

You cannot adjust the Window size to the iPhone 6 or iPhone 6 + preset Common Window Sizes in the Editor Preferences. Regression: this did not occur in UE 4.10 NOTE: This does not occur in New Ed ...

Using Replace Reference only works once on Linux

UE - Platform - Linux - Jan 14, 2016

Using the Replace References option to replace one asset with another, the window does not close/refresh properly. This causes the window to stay on the screen although it cannot be interacted with ...

Creating Actors as default subobjects causes crash (casting Outer to Level)

UE - Gameplay - Mar 18, 2016

If two custom classes are created in C++ (Class A & B) and a reference to Class A is created as a member of Class B and initialized in Class B's constructor, the editor will crash once a blueprint o ...

Steam Overlay does not show in Win64 Shipping builds when run outside of Steam

UE - Networking - Nov 11, 2015

Steam Overlay does not show in Win64 Shipping builds when run outside of Steam. The Steam client can be running, but unless the .exe is opened through Steam itself, the Overlay will not appear. Note ...