Glitch in Filemaker when shared


I have a Filemaker database that was developed to show imagery to customers on an iPad. But the database runs just fine on my Mac. I want to share the window for that database in a meeting, and it all works except one function. And I don’t understand why. I have the ability to click on an image and it enlarges to fill the screen (share window). I can see it properly, but my meeting attendees do not see the enlarged image. They see the previous screen, which is 4 smaller images.

Every other function in my database works just fine, so this is really weird. Doesn’t  Zoom just mirror whatever is in my share window to the other participants? Help! 

Thank you. - Mark