Hi,I'm seeing some new behavior, that's possibly a bug, with iOS 13.4 during the sandbox purchase flow.In older iOS versions, when I made a sandbox purchase, I'd see several popup dialogs from iOS asking me to sign in, and to confirm the test purchase. Since updating my devices to 13.4, when I make a purchase, I see a couple of strange things occurring:1) The purchase completes without any user interaction - no authentication requests, no purchase confirmation dialogs.2) Despite using a fresh app install, and a brand new iTunes Sandbox user, it appears that an older receipt is being reused, and it's one which has no details of the current purchase.Is anyone seeing the same? Can any Apple folks chime in whether this is a known/temporary issue with the sandbox?