"Enable Stencil Test" Mobile crash

UE - Graphics Features - Sep 10, 2019

A material with 'enable stencil test' will crash on mobile. Enable Stencil Test is a new option in materials as of 4.23 Confirmed with OpenGL 3.1 + 2 and Vulkan on Pixel XL Also Crashes on iOS ...

Cannot override editor shortcut bindings on Linux

UE - Platform - Linux - Nov 18, 2016

Clicking the Override option when attempting to replace a keyboard shortcut with another key that is already bound will not update the settings. Workaround: Unbinding the key before rebinding it to ...

ShooterGame weapon meshes are not consistent in Blueprint vs Editor viewports.

UE - Gameplay - Blueprint - Dec 8, 2016

Opening the WeapGun or WeapLauncher blueprints will show that Mesh3P has a relative rotation of -90, however both meshes are shown overlapping each other. When an instance of the blueprint is added ...

Resetting default on Power Of Two Mode, does not revert back to None in details panel

Tools - Oct 3, 2016

Resetting the Power of Two Mode is expected to revert the setting back to the default setting of None both in the viewport and the details panel. Both clicking the default arrow and Ctrl Z does not ...

Huge performance hit when recording a demo (demorec)

UE - Networking - Jun 3, 2019

The current engine version (4.22) seems to suffer a huge performance hit when using the demo recording (demorec) feature. This issue is present in both the editor and the packaged game (developer bu ...

Landscape DFAO shadowing artifacts in Standalone and packaged

UE - Graphics Features - Oct 25, 2016

The Heightfield from DFAO when playing in Standalone or a packaged game has darkened shadow artifacts for the level. Workaround: Use r.AOGlobalDistanceField 0 to disable the Global Distance Field. ...

GAS: Ability that destroys owning actor on activate causes crashes due to ABILITYLIST_SCOPE_LOCK

UE - Gameplay - Gameplay Ability System - Oct 31, 2023

A GameplayAbility that destroys its owning actor inside ActivateAbility() causes a crash, because actor destruction will modify the ability list but ActivateAbility() is called within an ABILITYLIST ...

Vehicle wheels have no collision on HTML5

UE - Platform - Mobile - Dec 2, 2016

A Wheeled Vehicle's wheels do not have collision when packaged into an HTML5 game. Regression?: Yes This issue did not occur in 4.13.2 Note: This is currently blocked from testing in Main as the P ...

Enabling "Support Deferred Rendering with Metal" Crashes on IOS device

UE - Platform - Mobile - Feb 8, 2017

After enabling "Support Deferred Rendering with Metal" and then launching to an IOS device (in this case iphone 6+) the game will no longer open and run. REGRESSION? Yes Worked in Binary 4.13.2 C ...

Map load stalls in texture streaming code

UE - Graphics Features - Jun 13, 2017

A change was made to AActor.GetComponents which appends the results instead of resetting the output array. This seems to only impact 2 places in the code, and has a big side effect in the texture st ...