Landscape incorrectly renders when camera clips through foliage while Playing in Editor

UE - LD & Modeling - Terrain - Landscape - Dec 1, 2014

Landscape sections disappear for a very brief time when the player camera clips through foliage quickly. ...

Crash and Performance issues when Generating Foliage using the Procedural Foliage Volume

UE - World Creation - Worldbuilding Tools - Foliage - Feb 14, 2017

Users are reporting crashes and poor performance when generating foliage using the Experimental Procedural Foliage Volume tool. Regression? Yes, this does not occur in the previous engine version o ...

Child Actor Component Actor Duplicates and Persists After Play

UE - Gameplay - Sep 26, 2019

When an actor spawns another actor using AddChildActorComponent that comes alphabetically before it based on blueprint name it will spawn an extra actor that will persist when the scene is stopped d ...

FPS drop when deploying to a Mobile device

UE - Platform - Mobile - Feb 27, 2015

The FPS drop off of this users project is significant between version of UE4. I tested this issue on a Samsung Galaxy Note 10.1 2014 edition. I also tested on a iPad air 2 on 8.1. There was a sig ...

Odd behavior when moving a large number of assets

UE - Editor - Content Pipeline - Content Browser - May 18, 2015

User is experiencing his PC running out of memory when he does large move/copy operations in the content browser. There are a few issues with this process. The first is that attempting to drag any ...

BP with Show 3D Widget enabled does not display the correct vector values in the bp editor

UE - Gameplay - Blueprint - Apr 7, 2015

BP with Show 3D Widget enabled does not display the correct vector values in the bp editor. Note: If you don't see a difference at first, delete the bp in the level and place it again. The widge ...

Cannot set the Rotation value of an Instance Static Mesh component if the scale is set to zero

UE - Gameplay - Feb 3, 2015

Cannot set the Rotation value of an Instance Static Mesh component if the scale is set to zero. This can be done with StaticMesh components and standard Static Meshes in the level. ...

MemReport does not seem to respect mesh streaming

UE - Rendering Architecture - Aug 6, 2024

The function "FStaticMeshLODResources::GetResourceSizeEx(...)" does not take into account that the buffers might be emptied, due to Mesh Streaming. This causes "obj list" to report sizes larger than ...

Enemy projectiles are traveling further then expected once project is packaged.

When playing the user's project in editor vs Packaged, there has been different results for the enemy projectiles and how they are shown on the screen. When In editor, any enemy projectile will dama ...

Enhanced input actions with Down triggers mapped to gamepad buttons can get into a bad state after viewport focus is lost

UE - Gameplay - Input - Mar 20, 2024

When we have an enhanced input input action that uses a Down trigger and is mapped to a gamepad button, for example Gamepad Face Button Left, it can get into a bad state when the game is unfocused. ...