New iPhone 14 only showing a black screen on lock screen

just got the new iPhone 14 last week and I successfully transferred all the data from my old phone to the new one. It’s a complete mirror image of my old phone. It even has the image I had as my Lock Screen on the new iPhone. All of a sudden, a few days later, the Lock Screen started to only a show black screen. When I restart my phone, my Lock Screen photo displays for a little while, but when I check it maybe an hour later it is back to a black screen. Really weird, but i would like this issue to be resolved because I don’t want to have to keep turning my phone on and off to be able to see my Lock Screen photo.