Unreal Engine Issues
Unreal Engine Issues
Modifying the view size can cause TSR history to allocate large amount of memory
UE - Graphics Features - Sep 4, 2025When animating the split fraction of a splitscreen experience, TSR causes an significant increase in UAV memory. In PIX, this appears to be caused by TSR allocating the history multiple times when ...
In the GameUserSettings class, Landscape quality is not taken into account by GetOverallScalabilityLevel, but is changed by SetOverallScalabilityLevel.
UE - Gameplay - Oct 17, 2025Context: GameUserSettings stores user settings for a game, for example graphics and sound settings. The Scalability settings provide a way for to adjust the quality of various features in order to m ...
World Outliner Sorting order ignores underscores for order
Tools - May 14, 2015When using the an underscore in the front of a name no longer works for sorting in 4.7 and later. In 4.6 and prior if you added an underscore to the front of the name it would sort to the top of the ...
Enabling Tessellation on Materials in 4.11 causes geometry to Disappear
UE - Graphics Features - Dec 23, 2015Any material that already exists in 4.11p1, with tessellation enabled, causes assigned geometry to disappear. Any material created within 4.11p1, with tessellation enabled and a base color, causes t ...
Set tracking origin has a 90 degree offset between Floor and Eye level
UE - Platform - XR - Jun 15, 2017Set tracking origin has a 90 degree offset between Floor and Eye level. When switching the Setting for the Set Tracking Origin Node from Floor level to Eye level, there appears to be a 90 degree dif ...
Printing a string or character to the device output log does not display the string/character
UE - Platform - Mobile - Aug 30, 2019If you point to a character or text data type and log it into the Device output log, the variable will not appear in the output. However, any other data type will appear. ( float, int, etc.). Found ...
On PC and Mobile Preview, Volumetric Lightmap provide very different Indirect lighting direction
UE - Graphics Features - Lumen - May 18, 2020Expectation: It's known it has different lighting interpolations method and quality for VLM on PCvsMobile; but Indirect lighting from VLM should provide similar lighting Direction on PC&Mobile. ...
The cloth wrap deformer doesn't scale the mapping influence distances when the character is scaled
UE - Simulation - Physics - Character - Jan 10, 2023The PositionBaryCoordsAndDist, NormalBaryCoordsAndDist, and TangentBaryCoordsAndDist data that all contain the vertex distance information to the simulated triangle in the cloth shader doesn't scale ...
Light components do not appear in the details panel when copy-pasted from a level to a blueprint's component hierarchy
As per the steps to reproduce, copy-pasting light actors from a world outliner into a blueprint's component hierarchy in the blueprint editor will result in the expected light component not to show ...
Changing a variable during simulate will cause physics object to jump around
UE - Simulation - Physics - Mar 16, 2016If a user has an actor that is simulating physics during simulation of play in the editor and they then change the value of a variable trough the details panel below the world outliner then the acto ...