Changed apple lD and lost photos on the iPhone
On the site appleid.apple.com I changed my Apple ID from @gmail.com to @icloud.com. Then when I signed in with my new ID on my iPhone I still see old ID. And in the Photos app (I have turn on iCloud Photo Library) I cannot see all pictures and on the bottom of photos I see “uploading items“ for three days without changes. But in the www.icloud.com there is everything. In the settings of my iPhone I try to delete my old ID and set new ID, but it always says “could not update email - your Apple id cannot end in @icloud.com. Choose a different email address.”
iPhone X, iOS 11.2.1