Automatic sync in acrobat reader app using acrobat cloud storage

Hi, I have a pdf book saved in adobe acrobat cloud storage. When I read it on my iPad, I left it on page 104, but when I open the book on my iPhone after that, I'd doesn't automatically open to the last location I.e. page 104, it opens on a previous page that I had last left in on the iPhone. What is the use of acrobat cloud if the files don't automatically update to the last location accessed?