Exiting Animations not working properly

Entrance animations working pretty good, but outgoing ones, especialy if combined with entrance animations do not.

Steps to reproduce:
- Configure Animation 1:
* Event Trigger: Enters Viewport
* Offset: 40% visible
* Animation: bounceIn
- Configure Animation 2:
* Event Trigger: Leaving Viewport
* Animation bounceOutRight

The leave animation fires if the element is already outside the viewport (take a loot at the debugger, the class is properly set), so the user will never see it - even if an offset is configured.