Move iPad Screenshots to an album
As an alternative, one way to accomplish this is to use the Shortcuts app by Apple, available on the App Store for iOS devices.

Here is the App Store Preview link for Shortcuts.

After installing the Shortcuts app, do the following:


Open: Shortcuts
Tap: Create Shortcut
Scroll down to Photos &amp; Videos and tap: Get Latest Screenshots
Scroll back down to Photos &amp; Videos and tap: Save to Photo Album
On the Save to Photo Album shortcut, tap Camera Roll and on the Album sheet select e.g.: iPad Pro
At the top of the Untitled Shortcut screen tap the Settings icon (the double switch).


From here, you can give it a name and set the various controls, tapping Done when finished.

The following is an image of the sample shortcut I created which, as initially set up, saves the latest screenshot to the e.g. iPad Pro album.



The following image shows the result of running the shortcut pictured in the image above, and as you can see the last screenshot was of the shortcut I created.



Obviously the screenshots were taken on my iPhone and are for demonstration purposes only, you'd install the Snapshots app on your iPad and use it there. You can also install and use it on your iPhone but its independent of your iPad install and not directly linked.