iphone – “Unable to load photo, an error occurred while loading a higher quality version of this photo” error message in Photos (iOS)

I’m trying to view a photo on my device but it’s incredibly low quality and has a white information button in the bottom right, which when pressed says:

“Unable to load photo, an error occurred while loading a higher quality version of this photo”

I have plenty of storage left, I’ve tried running the Photos app with low power mode off, restarting my phone etc and nothing helps.

It’s especially frustrating as I’m sure I never set it to ‘optimise storage’ and typically the one photo it’s lost is one of my absolute favourite memories and photos of my wife. Sigh.

Is there anyway I can get this back please? Thank you