Good morning. I use the Libby App to check out books from my local library directly to my iPad. The books are checked out for 21 days and automatically returned after the time is up unless I renew. I copy the books to my Kindle through Amazon so I now have the book in both the iPad and Kindle. When my time is up the book leaves the iPad automatically. The book still resides in the Kindle. This is not consistent. My current read is still on Kindle two weeks after it departed the iPad, others have been deleted from Kindle. Thoughts?