Blueprint Data Loss with Certain Variable Names

UE - Gameplay - Blueprint - Jul 21, 2020

Certain characters within blueprint variables names will cause data loss when duplicating an actor instance. For example if a variable name contains '(', '{', or '[' it doesn't retain the variable's ...

Masked Material is not displayed in LOD Coloration when turn off D Buffer Decal

UE - Graphics Features - Jul 22, 2020

This problem occurs not only in LOD Coloration, but also in other debug views such as Required Texture Resolution. ...

Can't update position with SetPositionInViewport when enable global invalidation

UE - Editor - UI Systems - Jul 22, 2020

When GlobalInvalidation is enabled, do not update to the position set by SetPositionInViewport. It works fine when GlobalInvalidation is disabled. ...

Random Tri Coord Using Vertex Color Filter doesn't filter correctly

UE - Niagara - Jul 22, 2020

The Random Tri Coord Using Vertex Color Filter module does not filter correctly.  ...

Chaos Destruction's PIE startup time increased several times from 4.23.1 to 4.25.1.

UE - Simulation - Physics - Jul 17, 2020

In response, the licensee asks the following questions.Are there any plans for improvement?Is there a workaround? ...

Fragments of a geometry collection go through complex collision

UE - Simulation - Physics - Destruction - Jul 23, 2020

Fragments of a geometry collection can not hit the mesh which is set "Use complex collision as simple" ...

"REFLECTION CAPTURES NEED TO BE REBUILT" is displayed on a cooked game.

UE - Graphics Features - Lumen - Jul 29, 2020

This issue occurs when streaming levels including reflection captures are displayed with  delay. When it finishes loading assets, reflection capture textures are uploaded to the GPU. Then the leve ...

Niagara mesh renderers with a volumetric material trigger a handled ensure and are invisible in the scene

UE - Niagara - Jul 29, 2020

Volumetric materials on a Niagara mesh renderer will not appear in the scene and cause a handled ensure.  ...

FBX exporting from Sequencer is inconsistent when both an object and one of its components have a transform track

UE - Anim - Sequencer - Jul 30, 2020

When both an object and one of its components have transform tracks, exporting to an FBX will have inconsistent results.  ...