I'm trying to change the cover of my book (Wake Me Up Inside) since Friday. I submitted the new cover on Friday and 24 hours later KPD sent me the email saying it was published. However, today, 12 hours after the email, it's still the old cover on the book page. My KDP bookshelf shows the new cover, though.
It's strange. I've changed covers before, and it was way faster and simpler than this. Has anything like that ever happen to you? Should I contact KDP support or wait a bit longer?