Shared iPads Not Allowing Sign-in

Hello,

We're trying to use Premiere Rush with a set of shared iPads. Once Class A signs in, the iPads refuse to allow anyone else to sign in when Class B comes to use the iPads. Even if you log out of the app via the Sign Out button, the app refuses to sign into the Class B pupil's Google account instead getting stuck in a kind of limbo where it looks like it's signed in as Class A pupil but isn't actually working at all.

Is there any easy way to get around this? We have the same issue in the Adobe Express app too but usually use that via our Chromebooks which works fine.