Been noticing this problem lately, but whenever I'm reading a webpage in Reader Mode, occasionally the screen will flash to a blank, white screen, before reloading and going back to normal. It's almost as if the phone has taken a screenshot, but I've done nothing to cause that, and the usual editing commands that come up after a screenshot does not appear. It's not super annoying (like when the Reader Mode doesn't work at all), but it is jarring when you're in the middle of reading a story and suddenly everything goes blank.

Has anyone run into this issue before? Is there a known fix for it?