A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
Hi John,
To better understand the situation from you side and help you do troubleshooting, could you please share a screenshot to describe the issue? You may use Windows + Shift + S to capture screenshots.
And I suggest you try opening PowerPoint app in safe mode,then open the presentation, see if issue still happens, narrow down if any add-in causes the issue.
1.Right click the Start button in Windows, click Run to open the Run box.
2.In the Run box, type powerpnt /safe, and click OK.
If issue persists, please also let us know your Office Version and Channel information. (check it via File>Account>Product Information)
Best regards,
Tina