Can’t enter password until hitting tab

I am playing around with PPWP and am successfully getting the prompt saying: “This content is password protected. To view it please enter your password below:”

I try typing the password, but the field is disabled (or at least I’m prevented from entering anything). I actually have to hit the tab key, then the field becomes visible and I can enter text.

Is this normal behavior? Can I have the password text box visible so users don’t have to figure this out themselves?