Unreal Engine Issues
Unreal Engine Issues
Creating 3 player splitscreen causes viewport to go black on PIE
UE - Graphics Features - Feb 13, 2015If a game is set to play with 3 player splitscreen, starting the came will cause the viewport to go completely black. Does not occur with 2/4 players. Does not occur in standalone ...
Collison and Simple Collision Mip Level Crash
UE - Graphics Tools - Terrain - Landscape - Mar 21, 2023DiffuseIndirect_Lumen_3 parameter missing and causing crash with Screen Space reflections and Lumen Async Compute
UE - Graphics Features - Lumen - May 3, 2025When the Reflection Method is set to Screen Space and Lumen reflections async compute is enabled Unreal will crash because DiffuseIndirect_Lumen_3 parameter missing, due to how DenoiserOutputs are o ...
Memory Leak in Actor Component Blueprints
UE - Gameplay - Blueprint - Dec 2, 2015Slow memory leak occurs after opening Actor Component blueprints. ...
Manipulating Morph Target on Master Component distorts Slave Components
OLD - Anim - Apr 1, 2016Manipulating Morph Targets on Master Component distorts Slave Components. It makes no difference if the slave component has the morph target being manipulated in the master See attached image and ...
Split-screen players not rendering
UE - Graphics Features - Feb 11, 2015When using the Create Player node to setup split-screen multiplayer, only the last player created will show properly. All other players experience render issues for their character and environment. ...
Character Blueprint Cannot Execute Montage to Play at a Negative Play Rate
OLD - Anim - Aug 3, 2016While an Animation Montage can be played at a negative play rate in Persona, the user cannot use the Character Blueprint to execute this action. ...
Can't assign LightMapCoordinateIndex on Static Mesh with generated LODs
Tools - Jan 10, 2020Once a static mesh have generated LODS, the only lightmap index value the static mesh editor's UI accepts is 0. We should be able to set the index to any value between 0 and 3 as long as there are ...
Crash after Clearing Sound Wave Asset and Deleting Media Player from Content Browser
Media Framework - Aug 8, 2016A crash occurs when deleting a Media Player asset from the Content Browser that contained a previously referenced Sound Wave asset. This issue does not occur in any past engine versions as the prev ...
Enum to string conversion has different results in PIE vs Cooked builds
UE - Gameplay - Blueprint Runtime - Aug 17, 2021This is because the metadata is editor only and will be stripped in a cooked build. We should make the behavior of the to string function consistent between PIE and a cooked build. ...