Clear Coat looks incorrect in the Preview when Energy Conservation on Material is enabled for non Substrate rendering

UE - Rendering Architecture - Materials - Apr 11, 2024

Enabling Energy Conservation on Material makes Clear Coat Material look weird in Preview. It looks fine in the Level Editor, but not in any "Preview" type viewport (Material Editor, Asset Thumbnails ...

UAT crashing at end of build calling FScopedSceneLock_Chaos::LockScene()

UE - Simulation - Physics - Editor - Nov 7, 2024

UAT has intermittent crashes at the end of  packaging. Looks related to  [Link Removed] . Could be that the solver is being destructed after the null check earlier in the function if this is multit ...

Material stats incorrectly flag 17/16 samplers even if GL4 allows 32

UE - Rendering Architecture - RHI - Jul 15, 2015

From AnswerHub: Utilising 128 textures in a material does not work in Linux, its still limited to 16 (actual 12) on OpenGL platforms, I looked at the commit that implemented it and I don't see anyth ...

Nativized widget with String table data crashes packaged game

UE - Gameplay - Blueprint - Jun 1, 2017

There is a crash that is occurring for packaged games that use the string tables and nativized blueprints. This issue only affects a packaged build of the game. Testing for this issue did not yield ...

Using the HighRes Screenshot command in a shipping packaged build crashes the game

Tools - Oct 20, 2017

Using the HighRes Screenshot command in a shipping packaged build crashes the game. This issue does not display a callstack or the crash reporter, simply a message that says fatal error then closes ...

Packaged game crash occurs when inclusive blueprints with an enum that exists in multiple blueprints

UE - Gameplay - Blueprint - Oct 23, 2017

THere is an issue with a Packaged game where a crash occurs when inclusive blueprints with an enum that exists in multiple blueprints. In the callstack, it appears that a blueprint is not found, ev ...

SetChildActorClass does not replicate when set to a different class

UE - Gameplay - Feb 20, 2019

When using SetChildActorClass to change a Child Actor Class, the change will replicate on the Server but not the Client. The Client will have the original Actor Class after the change happens. This ...

Constraining aspect ratio of cine camera with post process material attached causes rendering issue

UE - Graphics Features - Nov 25, 2019

Applying a PP material that uses absolute world position to a cine camera using "constrain aspect ratio" causes rendering issue. Note: Changing the film back settings on the camera also results in ...

Send "Enter Key" is not working with press and release key in Web Browser plugin

Tools - Mar 3, 2020

When trying to send the Enter Key to Web Browser using the Press and Release function, it does not work. This function works with any other key that you try to send. A repro project is attached tha ...

Landscape Grass disappears after sculpting a landscape with "Enable Edit Layers" on

UE - LD & Modeling - Terrain - Landscape - Apr 6, 2020

The grass won't spawn after proper material being applied on the landscape. Even after being forced to be spawned (by reloading the level, for example) the grass will disappear again every time the ...