Theories you had that are now debunked?

I want to hear some theories you had before a book came out and debunked them!

When AVOS was on book one or two, I really thought Violet and Twig were Darktail's kits, due to his shine for Violet and patience/interest in her, as well as looking similar. I also hoped their mom was Echosong!

Another I have was thinking BloodClan was going to return soon, around the time Graystripe's Vow came out. They just got mentioned in and out of text a lot again all of a sudden.

On a smaller scale, I feel Stormcloud was set up to be Cherryfall's mate, and then Sparkpelt's, and neither came to fruition.