In the middle of about 80% of the iPhone photos I take of the northern lights, there’s a weird circular artefact like a bullseye. It’s driving me mad. It’s not a cover (there isn’t one) or a protective lens covering (ditto). I’ve tried it with my husband’s phone (also iPhone 13) and no artefact…so is it a glitch? Has anyone else seen this? How do I fix it?? Haaaaalp.