OnSmartLinkReached Event Not Firing in PIE

UE - AI - Sep 20, 2016

The OnSmartLinkReached event is not firing in PIE. This is a regression. In 4.12.5 the event fires as expected. Found in 4.13.0 CL 3106830 Reproduced in 4.14 Main CL 3129233. ...

Client crash on seamless travel in DataReplication with lag

UE - Networking - Jan 11, 2016

When server traveling, client may crash due to lag while attempting to replicate object/property. ...

Variable Reset on Child in level

UE - Gameplay - Blueprint - Apr 24, 2017

For a child instance inside of the level, the value of a parent int variable will reset if you add a new variable in the child and if there is a function in the parent that has the child as an outpu ...

If Pause Event is played in second half of Fixed Frame Interval, you can't resume playing

UE - Anim - Sequencer - Jun 13, 2017

If Pause Event is played in second half of Fixed Frame Interval, you can't resume playing. Pause event appears to fire again when trying to resume playback. To expand on the summary, if you have a ...

Destructible meshes hang after first bounce

UE - Simulation - Physics - Destruction - Jul 9, 2015

Destructible meshes that bounce lose their momentum, causing them to hang awkwardly midair (see attached video). The issue does not appear to occur for low framerates, and would only repro during sc ...

Setting meta data to custom MetaData class does not save after restarting editor

OLD - Anim - Apr 8, 2016

When setting a custom meta data class in an Animation Montage, the class set is not saved when the editor is closed / reopened. ...

When Importing Camera, Previously Imported Cameras' Focal Length is Overridden

UE - Anim - Sequencer - Dec 4, 2017

4.17 does not allow for camera import. If multiple cameras are imported into sequencer, all cameras Current Focal Length change to match the newest imported camera. Mentioning Jira: [Link Remove ...

Override Attenuation Can't be Unchecked When Audio Component Added to Blueprint and Blueprint Attached to Actor

UE - Audio - Dec 20, 2017

Checking Override Attenuation in Details <  Audio Component < Attenuation disables settings that further adjust the Attenuation. Such as: Attenuation Air Absorption, Attenuation Listener Focus, Atte ...

Destructibles are not rendered correctly when fractured if Support Compute Skincache is enabled

UE - Simulation - Physics - Destruction - May 8, 2018

The rendering of the fractured pieces of a destructible is incorrect when Support Compute Skincache is enabled. The physics of the fractured mesh simulates correctly but the pieces do not render pro ...

Lyra - attribute sets of characters placed on world partition boundaries break in PIE

UE - Gameplay - Gameplay Ability System - Jun 28, 2023

When placing an instance of ALyraCharacterWithAbilities on the map on the boundary between world partition cells, it fails to take damage in PIE. The expected attribute sets (HealthSet and CombatSet ...