I am using Version: 126.96.36.199 Beta (676104) 32-bit - 08 Sep 2019, but I cannot get the page view option to highlight or check the box.
Just tested it in B23.
Close and restart.
Try a new document.
Then try removing and reinstalling.
Just suggesting from a background in software testing and general nerdiness in my life.
Please make sure that the focus is in the editor, and that you are only viewing a single document (not in Scrivenings mode). If it still does not work, please let us know so we can try to narrow down the cause.