Instance UObjects in an array on an Actor replaced by pointers to other objects in array while PIE

UE - Gameplay - Blueprint Runtime - Sep 20, 2018

When this issue occurs printing out the addresses of each item in the array shows that elements 2 and 3 have the same address, so for some reason the second element's value is being overridden by th ...

UMG screen size setting needs update for new mobile devices

Tools - Oct 29, 2018

We're missing settings for iPhone XS iPhone XS Max iPhone XR Google Pixel 3 Google Pixel 3 XL Samsung Galaxy Note 9 We also don't have settings for iPad 5th Gen or iPad 6th Gen, however these would ...

called custom functions do not update parameter names upon compile, must be replaced

UE - Gameplay - Blueprint - Apr 21, 2015

Parameter names do not update on custom functions that are already called in event graph after compiling blueprint. ...

Cook issue, the morph target from the running platform can replace the target platform

UE - Editor - Content Pipeline - Asset Build - Jan 5, 2022

[Interchange] Bone name space are replace with underscore, legacy fbx rename with dash

UE - Editor - Content Pipeline - Import and Export - Nov 6, 2024

This bug is critical since it can broke bone name reference between [animations, physics asset, curves, ...] and skeletal mesh bone name ...

Virtual Texture does not stream high-resolution data when assigned as a UI material to a widget.

UE - Rendering - Architecture - Mar 23, 2026

When a Virtual Texture is applied as a UI material, there is no associated geometry, so it does not explicitly request the loading of high-res virtual texture tiles. ...

Common UI/Enhanced Input UI action binding issue

UE - Editor - UI Systems - UMG - Aug 23, 2023

They've nailed it down to the following logic FUIActionBinding::TryCreate which doesn't check for the InputAction specified.// Make sure there is no existing binding for the same action associated w ...

Draw at desired size does not return to being false when unchecked

UE - Editor - UI Systems - Aug 4, 2017

When setting "draw at desired size" for a widget component to true, the "Draw size" will no longer respond to input. ...

Changing default click trace channel in player controller causes widget to not register the mouse

UE - Editor - UI Systems - May 26, 2016

When the default click trace channel is set to something other than ECC_Visibilty, the editor does not take the change into account when determining which channel is being blocked. Download link fo ...