Never thought to test mobile 404 before but just did (by typing in a page on my site I know doesn't exist) and instead of automatically just pulling up my homepage (which should happen) I get the
"Not Found
Apologies, but no results were found for the requested archive. Perhaps searching will help find a related post."
page which from my googling appears to be what comes up if you have no posts published. My blog has many many posts and I don't (nor do I want) use a static front page. Trying the same random urls on desktop or even ipad redirects fine, just not on my iphone. Viewing the pages normally on my phone has always worked fine and still does, including the homepage.
Suggestions?