iOS 13 pull down to check new mail doesn't work

I am setting up my new iPhone SE (2020 version). In Mail I used to be able to pull down from the top of the screen to refresh / check for new mail. This no longer works. I pull down and nothing happens. The text at the bottom of the screen still says 'Updated 5 minutes ago'.

The only way I can get it to update is to quit Mail and restart Mail.

In Settings I've set up my Mail accounts to manully get new emails (presumably only when I have Mail open and manually pull down from the top to check for new mail).

Thank you