"Ensure condition failed" when opening / playing CameraAnimationSequence

Hi

I’m getting some ensure failures related to CameraAnimationSequence. I’ve created a CameraShakeBase that uses a custom CameraAnimationSequence, which (the CameraShakeBase object) is passed to ClientStartCameraShake method in the controller when firing a gun.

I’m getting ensure fails the first time the gun is fired, subsequent shots works fine and the shake is working as intended. The same assertion fails also fires the first time I open the CameraAnimationSequence in the editor. Closing it and opening it again works fine until I restart the editor.

I’ve derived a blueprint object from CameraShakeBase which is then set in a character blueprint. ClientStartCameraShake is called from the character blueprints parent in code.

I’m on Unreal Engine 5.2.

Has anyone else encountered this? if so, did you find a solution for it?