Tween component sometimes unreliable

There are two problems with the tween component, reported by Pravus

1) Doing Tween.creteOrReplace() is not reliable

There are cases where I try to apply the same tween several times to the same entity. Sometimes trying to do this, tweens don't get applied at all unless I manually do a Tween.deleteFrom(entity) first.

2) tweenSystem.tweenCompleted(Entity) is not reliable

Sometimes the completed = true state gets lost, and stays false forever

Docs on this feature:
https://docs.decentraland.org/creator/scenes-sdk7/3d-content-essentials/move-entities#on-tween-finished