When DC Pro is set to single page display (scrolling is easier/more precise) ctrl+a only selects the current page

Adobe say this is not a bug, but I believe it is because ctrl+a should select all, not just the page being viewed

As this basic functionality is altered by a simple setting it is a bug

So they suggested making a feature request

Please make DC Pro select all (not just the current page) when the select all shortcut is used while in single page mode