React Navigation HeaderBackButton not showing on Android

Any idea why HeaderBackButton isn’t showing the back icon on Android? Works on iOS and I’m on the latest version of expo and react navigation. Happens in both dev/prod mode too. Video of it: https://twitter.com/benawad97/status/1156215047011655680?s=19

Could you post the code you’re using?

I can’t, but it only happened locally. When I built the standalone app it worked fine.