Items keep moving to top of page when clicked

Hello Glen, 

Thanks for the screenshot! I must say that I've never experienced this behavior before, even with objects that have animations. I'd like to ask a few questions to help clarify your experience:

• Have you tried importing your project slides over to a new project file as a troubleshooting step? 
• Are you working locally when making changes to your project file? 

If you're already working locally, and importing your slides doesn't help, would you be willing to upload a copy of your project file here or in private by opening a support case so we can take a look at what's happening? We'll delete it as soon as we're done troubleshooting.