Setting a poseable mesh component as leader component for a skeletal mesh component causes an access violation.

UE - Anim - Runtime - Jun 11, 2024

When a skeletal mesh component's leader component is set to a poseable mesh component, the application will run into an access violation when it tries to update animation curves and morph targets. ...

Option "Update Animation in Editor" is reset for child skeletal meshes

UE - Anim - Runtime - May 24, 2024

When the boolean is set on a child skeletal mesh, looks like it gets reset   Specifically , at UActorComponent::ConsolidatedPostEditChange forces a reconstruction of the Blueprint, making the trans ...

Blend Stack node doesn't have a valid FDeltaTimeRecord

UE - Anim - Runtime - Apr 19, 2024

The blend stack node doesn't generate any values for its DeltaTimeRecord.  This can be tested with the fix for [Link Removed] shelved at 32747789.  Since there isn't a tick record directly associate ...

BlendSpace DeltaTimeRecord.Delta can incorrectly be set to zero

UE - Anim - Runtime - Apr 19, 2024

It's possible for blendspaces to end up with an invalid delta time record because of how UBlendSpace::TickAssetPlayer modifies the time record.  This only seems to happen with specific settings:Axis ...

Reimport FBX does not correctly update frame-rate

UE - Anim - Runtime - Apr 2, 2024

This is an issue with the sequencer model, it does not clear its bPopulated flag so doesn't allow for changing the frame-rate to a non-compatible (multiple/factor off FPS). ...

When the Initial Position of an Animation Asset is entered outside the expected range, the animation gets stucked and does not refresh.

UE - Anim - Runtime - Mar 18, 2024

The animation gets "corrupted" when the Initial Position value has an invaildad value. In this case, this means that the Initial Position value is outside the range of the duration of the Animation. ...

Jitter playing animation on actor located far from origin

UE - Anim - Runtime - Mar 12, 2024

A licensee has reported an issue with jitter when playing animations on an actor translated far from the origin (300000.0 units).  This repros on the First Person Template.  The issue is more obviou ...

FNotifyNodeInterface crashes when referenced Notify is invalid

UE - Anim - Runtime - Mar 1, 2024

Currently FNotifyNodeInterface directly references notifies that live within the related anim sequence.  This can cause intermittent crashes when notifies are removed as the UI can still reference t ...

Creating an AnimStreamable asset immediately crashes the editor

UE - Anim - Runtime - Feb 6, 2024

When creating an anim streamable we immediately fail a check in the compression code in FCompressibleAnimData::FetchData: checkf(AnimSequence, TEXT("Invalid animation sequence while trying to fetc ...

Crash when using Property Access node on Animation Blueprint (repro based on Lyra Starter Game animation layers)

UE - Anim - Runtime - Jan 24, 2024

When using the Property Access node on Animation Blueprints to gain performance by better exploring parallel processing, it is possible that the underlying accessed property or any intermediate acce ...