Mouse cursor does not disappear when widget has focus

UE - Editor - UI Systems - Nov 20, 2017

THere is an issue with the Mouse cursor when using UMG with the set show mouse cursor option. after setting the set show mouse cursor off pressing a widget and giving it focus causes the mouse curso ...

Blueprint Function Reorder displays error tooltip when trying to reorder functions

UE - Gameplay - Blueprint Editor - Dec 7, 2017

There is an issue when attempting to reorder blueprints where Blueprint Function Reorder displays error tooltip when trying to reorder functions. In previous engine versions, functions could not be ...

Cloth Rendering - Optimizations cause a one frame geometry stretch when off screen cloth is teleported back on screen.

UE - Simulation - Physics - Character - Aug 26, 2021

Render optimizations are causing the cloth render data to be updated one frame too late after an off screen cloth object has been teleported back on screen. The optimisation triggers itself after a ...

Networked root motion montage with rotation fighting smoothing

UE - Gameplay - Player Movement - Oct 30, 2023

A licensee is reporting a sim proxy is playing a networked anim montage with root motion, that the rotation changes will fight between what's produced in ::SimulateRootMotion and ::SmoothClientPosit ...

Wolrd Partition Foliage Builder - Fails to build with multiple external actor folders.

UE - World Creation - Worldbuilding Tools - World Partition - Apr 1, 2025

Hello, We are building a world with world partition & a lot of nanite foliage. We want to modify out Foliage Instance grid size via the commandlet. [Link Removed] Even in a new empty level the c ...

Importing folder with a period in its name causes crash

UE - Editor - Content Pipeline - Import and Export - May 15, 2018

Folders with periods in the name will crash when attempting to import them. ...

Bug: Relative File Paths for Asset Source Files are Incorrectly Generated for Engine and Engine Plugin Assets

UE - Editor - Content Pipeline - Nov 21, 2024

When importing an asset like a Texture asset using the steps mentioned in the Repro steps, the imported asset does not have the correct relative path listed under the newly-created asset's "Source F ...

Unable to create installed build with iOS support from PC

UE - Foundation - Core - May 3, 2017

Attempting to build a local binary engine from a source engine will fail when iOS support is enabled in the setup process. Command line argument (ran from Engine/Build/BatchFiles folder location): ...

Dithered LOD Transition Has Visual Pop

UE - Graphics Features - Dec 28, 2016

When a static mesh that is placed in the scene begins to transition using dithered LOD, The LOD that is being transitioned away from will "POP" in at full opacity for a moment just before the dither ...

32bit TGA Texture With Alpha Has Noticeable Artifacts On RGB Channels (DXT5)

UE - Graphics Features - Feb 17, 2017

When using a 32bit tga with an alpha channel that has hard edges the compression method (DXT5) will create artifacts in the RGB channels that normally aren't there whit DXT1 compression(no alpha). ...