yes, many hosts have had the same issue. Therefore, there are numerous threads in this forum about this issue, and lots of tips on how to solve it. This probably goes for the majority of issues a host might experience… 😉
I'm sorry to hear you were having some issues with your cover photo!
Did you get a chance to try out some of the advice the other hosts have shared? it would be great to know if you've managed to get this resolved, or if you need a little bit more help. 🙂