I have copied a Flipcard from https://www.libli.de/cornerstone/edit/4371

there the Button on the backside ist visible.
By pasting it into https://www.libli.de/cornerstone/edit/4716 the button ist not displayed.
I have also created a new https://www.libli.de/cornerstone/edit/4971. When I paste the same first Flipcard, the Button is visible.![Bildschirmfoto 2026-11-05 um 22.13.27|390x478]
What’s wrong with it?
Thank you very much for your help


