Using the action manager's .registerActon and .then, if I start the next interpolation before the previous one finishes, it looks like the last 'frame' briefly flickers while the second one is playing.
https://playground.babylonjs.com/#LXF99J
Click the sphere to start it moving, click it a second time before it's finished animating to see the effect.
Is this the expected behaviour? Is there a way of avoiding it?