I had created a power app from a simply excel sheet. I had a gallery showing this data and on another screen I had a form mode edit that would show the data from what was selected in the gallery. pretty simple.
I then create another power app and used data I imported into a list. I have a split screen, gallery on one side and an edit form on the other side. Gallery and edit form both connected to the sharepoint list.
My gallery shows just fine, but on the right screen edit form I use one of the card inputs fx to ex. 'gallery1.selected.projecttitle'. I can see that is provides me the project title, but when I save this and play, it shows me the gallery, but on the right it shows me "no item to display"
Why is it doing this? if I stop play and am in edit, I can literally see the edit form and the selected.projecttitle, but in play I get a blank screen.