Why won't 1Password for iOS copy OTP?

Hi! When I log into Paypal on Safari my OTP (from 1password's authenticator) is automatically pasted into the 6 digit field and I get straight in. On iOS however I have to exit the app, open 1password, copy the OTP, go back to the Paypal app and paste it in.
Is there a way around this?

Thanks

1Password Version: 8.10.2
Extension Version: Not Provided
OS Version: iOS 15.6.1
Browser:_ Not Provided
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