StandBy Mode prompting for password instead of showing photos

When my phone is in standby mode, the fullscreen photos screen always just shows the keyboard and a password field (asking me to authenticate). Seems like it won't show any photos unless the device is unlocked (which it usually isn't, when it's charging). I checked for any lock screen privacy settings relating to photos but found none. Any ideas on how I can get this to work? The screenshot I shared doesn't show the keyboard for some reason, but it's there.

If I enter the password, or use Face ID (which is odd because the phone is sideways, and it doesn't recognize me unless I rotate either the device or my head), it will show the photos, but as soon as the screen dims, it locks again.

Help!