Altering Player Controller in Gamemode resets upon reloading project

UE - Gameplay - Blueprint - Nov 26, 2014

If a user sets the player controller to a custom Player Controller inside of a gamemode, then compiles, saves, and closes both the blueprint and the editor. Upon reloading the player controller in t ...

Converting a source built project to 4.10 prevents the project from packaging.

UE - Foundation - Cpp Tools - UnrealBuildTool - Nov 27, 2015

If a project created in a source build of the engine is converted to the source version of 4.10, the project will not compile with a "Missing UE4Game binary" message. ...

4.22.1 Crash in FVulkanResourceMultiBuffer::Lock

UE - Rendering - Architecture - RHI - Jul 31, 2019

Vulkan Multibuffer Lock mechanism for ReadOnly does not appear to be implemented. Temporary workaround has been provided to licensee. ...

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. ...

Ad banner is displayed incorrectly on Android 7.0 devices

UE - Platform - Mobile - Feb 24, 2017

GameActivity.java needs to be updated to show the ad popup window on Android 7.0 devices. GameActivity.java uses Gravity.BOTTOM or Gravity.TOP to place the ad. One thing to try would be to edit ...

Compiling on Mac fails if build path has spaces

UE - Platform - Apple - Jan 6, 2015

UPDATE: We were able to get around this issue by renaming our external drives. The actual problem is that Mono's xbuild fails to build UnrealBuildTool QA REGRESSION: YesWORKING: 2386770BROKEN: 23 ...

Curl Noise Force Not Applying to Niagara Emitter

UE - Niagara - Jul 30, 2018

Curl noise force will not affect a Niagara particle regardless of strength. Current work around is to disable then re-enable "apply forces" under "solve forces and velocity" Found in 4.20 CL# 4233 ...

Setting a float variable to a value that's beyond the maximum value of a float causes the editor to become unresponsive

UE - AI Workflows - UI Systems - Localization - Nov 12, 2021

When inputting an extreme large value into a float variable that exceed the maximum value of a float, the engine then becomes unresponsive. I tested this with an integer variable and this did not oc ...

When TSR is enabled, the maximum brightness is clamped to about 16000.

UE - Rendering - Features - Jun 7, 2022

You can also check it by enabling real-time rendering in the NewMap.umap of the attached project, and then clicking on "High Resolution Screenshots". (You may need to disable and enable post-process ...