I need to read children's books to stay sane!

Aghghghg! My book-world is quietly falling apart, as publishers change and close, and even self-publishers prove to be built on shifting sands. Createspace is going to merge with KDP (logical - they're both Amazon) and "some" of my books won't work, but no one will tell me which. Or was that just a general warning sent to everyone. Or... whatever, it caused unhappy (unproductive) hours researching "stuff." But those were hours when I was meant to be researching public domain images for re-rel...