Authorization forced prior to Paypal Button

Using OC 3.0.3.2 and most current version of Paypal Checkout Integration.
During checkout, an Authorize form is appearing prior to the Paypal button becoming available (see attached .jpg).
This same Authorize form is also inserting a large amount of spacing below it.
Then the GooglePay and Advanced Card CC Form are shown far below and are not greyed out.
This seems very awkward, creates a very long page, and disrupts the flow of checking out by forcing a customer to enter CC details twice, and/or before they can login into their PP account.

Can I make this go away and not occur?
I assume it is the PP extension creating it as any other chosen method of payment does not cause it to appear.
It happens whether I have the "Advanced Cards" feature in the PP extension turned on or off.

Thanks in advance for any advice.

I also have found suspicious iFrame code when I inspected the source code of the Authorize form.
This is not my URL. This found within the Paypal button code as far as I can see as it is preventing the button from being available until completed.
Please also see attached .jpg

Found a malicious script inserting this via my GDPR extension.
I am contacting the devs of the extension to let them know about the vulnerability.