Crash compiling a blueprint after changing a Text variable to String, while the Details panel are visible

Gameplay - Blueprint Editor - Jul 29, 2020

Crash occurs when the user changes a Text variable to a String while the Details panel is displaying its properties, and then compiling. Crash does not seem to occur if the Details are not visible. ...

Cloth rendering issue on triangles sharing kinematic attachments.

Physics - Clothing - Jul 29, 2020

All render vertices on any cloth triangle that contains one or two fixed vertex are set as fixed, whereas this should only be the case if all three vertices were fixed. ...

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

Rendering - Ray Tracing - 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 ...

Assertion failed: Engine crushes when a geometry collection hits a landscape

Physics - Jul 27, 2020

This is because THeightField::PhiWithNormal has not been implemented yet. ...

Black flickering on Mesh particles when the Renderer is set to a non-default Facing Mode or using Orient Mesh to Vector and when using Particle Position in the Material's WPO

Rendering - Niagara - Jul 23, 2020

Black flickering on Mesh particles when set to a non-default Facing Mode or using Orient Mesh to Vector and when using Particle Position in the Material's World Position Offset ...

Fragments of a geometry collection go through complex collision

Physics - Destruction - Jul 23, 2020

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

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

Rendering - Niagara - Jul 22, 2020

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

Actors are not properly restored when undoing a Replace Selected Actors transaction

Gameplay - Components - Jul 22, 2020

When undoing a Replace Selected Actors operation, the resulting actor is corrupt and triggers an ensure where the root component is in the process of being destroyed. This is a regression that poppe ...

Can't update position with SetPositionInViewport when enable global invalidation

Tools - UMG - Jul 22, 2020

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