Hello,
I have a Power App which contains a Gallery which is connected to a SharePoint List. The List has less currently than 10 entries and my user has Full Control on the SharePoint List.
But the Gallery does not show any items from the SharePoint List. When I change the Datasource to the "CustomGallerySample", then it displays multiple entries.
So I suspect the Gallery to be alright and the root cause to be somewhere else.
Here some info about my setup:
The SharePoint List is called'Reisebuchung - Zeiträume'
Here with the CustomGallerySample:

Do you have an idea where Power Apps could have an issue?
On a different list on a different site collection it worked without any problems, but now on the list for production it doesn't work anymore.