Try to share a one page app to your iPad and let us know if that app will open. Thank you for the feedback.

What is the Player version on your iPad? I tried to recreate this situation but the animation is working great.

Send the updated app to ezra@interactstudios.com and write down all the details about it. Thank you for the feedback.

Did this situation occurred all the time or it was fixed after you restarted IB3?

I was able to recreate this situation, a solution at this moment is to always open your app when you visualize the bookshelf in the mode of your app. So for example if your app is in portrait mode, try opening your app when you have the bookshelf in portrait mode. After you opened the app, you can change the portrait mode to landscape mode and it will work.

Could you send the app to ezra@interactstudios.com so we can check to see what is wrong with it.
For the situation explained with the image: You can have a transparent element on top of the lizard that will trigger the wanted behaviors.

The best way at this moment is to have a StopSpin behavior with a delay. So if for example your element is doing a spin movement in 1s and you want for it to do only 3 spin action you should have the StopSpin behavior delayed by 3s.

I tried to recreate this situation but everything worked ok for me as shown in the attached sample app.
333 - Opacity animated element.zip
Could you tell us on what OS and on what version and build of InteractBuilder are you experiencing this situation?

Could you provide us some details like:
-on what OS this situation happen?
- was in InteractBuilder (InteractMode) or in InteractPlayer.
-what kind of animation it is: a frame animation or a graphical element animation?
-the behavior for the other element.
Thank you for your feedback.