I can't ungroup thumbnails in my pages document
I create pages documents with screenshots of items we are purchasing for our shop. For some reason many of my pages/thumbnails in my 72 page document are grouped together and I can't seem to ungroup them.
I have tried to Ctrl click the section but the 'ungroup' button is not available under Arrange.
I have also tried to go to the end of each page section to create a section break, but since it is all screenshot photos in the document, there is no cursor.
MacBook Pro 13″, macOS 10.15