Unable to play level sequences or actor sequences while the game is paused

UE - Anim - Sequencer - Dec 7, 2020

This is caused by several failures in the custom ticking and update logic for level and actor sequences. A possible solution is shelved in 14859265, but will need testing with all known cases of pau ...

Crashed when selecting a class for a property in BP

UE - Gameplay - Blueprint Editor - Dec 5, 2020

Collision boxes always have Navigation Area Class reset to NavArea_Obstacle on project load

UE - AI - Navigation - Dec 4, 2020

Every time when reopening the project, Nav Area Class on collision geometry gets reset to "NavArea_Obstacle", instead of maintaining its state. ...

Crash when plugging Depth Fade to Base Color and using Required Texture Resolution mode

UE - Graphics Features - Dec 1, 2020

Crash when plugging Depth Fade to Base Color and using Required Texture Resolution mode Hi, We have a material that uses the Depth Fade node for the Opacity and Base Color. However, the engine cras ...

Error when exporting OBJ unattended

UE - Editor - Content Pipeline - Import and Export - Dec 1, 2020

When doing an unattended OBJ export with python. The export will fail and give the atteched callstack. ...

Ensure condition failed: Play an animation in the finished animation event called from UUserWidget::StopAllAnimation

UE - Editor - UI Systems - Dec 1, 2020

If a widget has playing animation node in finished animation event, calling StopAllAnimations appends a new UMGSequncePlayer to ActiveSequencePlayers array during array iteration and cause ensure co ...

References to Data Assets that inherit from Blueprints may be broken during reinstancing

UE - Gameplay - Blueprint - Nov 30, 2020

It is possible to create new Data Asset instances in the editor that inherit from a blueprint-defined subclass of UDataAsset. This flow is not very well supported, and generally it is safer to just ...

Particle Data Exports only work in the final simulation stage

UE - Niagara - Nov 30, 2020

Particle data will not be exported unless it is in the final simulation stage. ...