"Play in App" not opening with the signed in player

On iOS, when you click on Play in App and it opens in Roblox Mobile, it doesn’t open with your user that is signed in. So say you aren’t signed into Roblox in Roblox Mobile and you are signed into Roblox on Safari, the user you play as is a guest.

I’m signed in:

:

Roblox mobile says otherwise:

You basically have to sign in the app before you click play on safari. You have to leave the process open or it may log you out again.