Input Events don't have friendly names in Call Stack tab

UE - Gameplay - Blueprint Editor - Nov 27, 2017

In the Call Stack tab, input events are not listed by their friendly names. Instead they have long names such as InpActEvt_One_K2Node_InputKeyEvent_2. This is different from Actor Events that simp ...

Previewing Node in Material Editor Produces Unexpected Output with DX12

UE - Graphics Features - May 16, 2018

Per Licensee: Since we switched to DX12 we started to see strange behavior in material previews. I was able to reproduce the problem in UE 4.19 vanilla as well. We usually have to force recompilin ...

Copying and pasting a material function renders all of the duplicates inputs as not having default values

UE - Rendering Architecture - Materials - May 22, 2019

The top material function was placed in a graph directly. The second was generating by copying the first node. Note that the input pins changed color which indicates that each input on the new modul ...

Specific Blend Mode of Material on UMG render incorrectly when HDR is enabled

UE - Graphics Features - Jan 27, 2022

This issue occurs with the Additive and Alpha Holdout settings. ...

Wrap function incorrect

UE - Gameplay - Blueprint - Nov 23, 2022

Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...

Postprocess volume priority bug

UE - Graphics Features - Mar 13, 2023

DoesSocketExist always returns false for Sprite Sockets (flipbooks and sprite components)

UE - Gameplay - Paper2D - Jan 15, 2015

DoesSocketExist always returns false for Sprites in a Flipbook, whether there is a socket on any/all of the Sprites or not. Note: GetSocketLocation seems to work fine, indicating that it is reading ...

Math Nodes are not updating on input

UE - Rendering Architecture - Materials - May 11, 2015

Add, Multiply, Subtract and Divide Nodes in the Material Editor are not longer updating on input but on the next node added to the Material. Also Reproduced in Main Promotable-CL-2541904 [Link Rem ...

Exponential Height Fog renders incorrectly after Set World Origin Location

UE - Graphics Features - Dec 12, 2016

When having an Exponential Height Fog actor far away from origin, after doing Set World Origin Location, Exponential Height Fog's appearance changes. ...

Fix pause flags when recycling sound sources

UE - Audio - Dec 12, 2016

Issue is due to pause flags getting recycled when new sound sources are used from the sound source pool. This is a regression since 4.13, causing audio to pop. ...