Plugin fails to compile in 4.11 due to redefinition errors

UE - Foundation - Cpp Tools - Plugin System - May 10, 2016

Plugin fails compile in 4.11 / 4.12 due to redefinition of class/struct type (locally). AH user reported LNK2005 error when compiling in 4.11 Regression: YES? - Project with the attached plugin co ...

[MetaSounds] - If the audio output hits an extreme Gain value, the Audio Meter Widget stops responding

UE - Audio - MetaSounds - May 20, 2022

It's possible to have the Audio Meter widget stop responding if you set the Gain really high. It will cease to work as long as the MetaSound window is open. Closing and reopening the MetaSound windo ...

Converting BSP to static mesh on Linux causes the editor to crash

UE - Platform - Linux - Mar 11, 2016

Converting a BSP to a static mesh will freeze and crash the editor when done on Linux. Windows does not exhibit the same conversion crash. ...

Adding Text Widget BP as "Widget Class" in Actor Class BP and compiling multiple times, changes Text visibility in Viewport

UE - Editor - UI Systems - Sep 15, 2017

Adding a new Text Widget Blueprint as a Widget Class to a new Actor Class Blueprint changes the visibility of the Text in the Viewport when compiling the Widget Blueprint multiple times. Regressio ...

Sub editors do not gain focus when opened

Tools - Aug 3, 2015

Sub editors do not gain focus when opened. Ctrl+F4 (Close Major Tab) does not work until the open tab has gained focus, so it must be clicked before the hot-key works. Reproduced in 4.8.3 binary an ...

Enum Element Names Reset on Project Upgrade

UE - Gameplay - Feb 22, 2017

Upgrading a copy of a project from 4.14 to 4.15 appears to be resetting the names of enum elements on switch on enum nodes. Opening the enum, saving it, and then restarting the project seems to res ...

Some debug modes do not work in PIE

UE - Platform - Mobile - Jan 9, 2024

It looks like the output of the debug pass is ignored, and the final output from the last frame before the pass was enabled is displayed instead. If the pass is modified to return a different textu ...

Infinite loop error message does not help and spawns too many messages

UE - Gameplay - Blueprint - Dec 17, 2014

The infinite loop reporter is reporting every infinite loop by popping up a window for each problem loop. So if you have an actor with 3 loops that trigger the infinite loop error and then you have ...

Sharing Material shaders wastes memory and disappears from the memreport

UE - Graphics Features - Jul 18, 2019

Enabling bShareMaterialShaderCode breaks memory tracking and wastes memory due to issues in ShaderCodeLibrary. It is also worth noting that after cooking with bShareMaterialShaderCode enabled causes ...

The DemoRec console command crashes the editor if used during PIE

UE - Networking - Aug 5, 2015

The DemoRec console command crashes the editor if used during PIE. Reproduced in 4.9 Preview 2 binary and 4.9 Releases (//depot/UE4-Releases/4.9/Promotable-CL-2643093). Does NOT occur in 4.8.3 bina ...