Can't open app in editor

When I log into Glide and select the “May Apps” tab, I am able to see 5 apps that I have created. There is only one of the 5 apps that I can open in the editor, however. For each of the others, when I click on it, my screen momentarily goes blank white, then briefly displays the sliding bars waiting symbol, then goes back to the My Apps screen. For the one app that will open, the behavior is exactly as expected. When I click on that app, I briefly see the sliding bars waiting symbol, then the app editor opens and I am able to make changes to the app design or data.

Thanks for any help anyone can provide.