Invalid Barcode in User Account

Hi there,

I installed this plugin on four wordpress sites, all using the latest wordpress.

On three of them, no problems whatsoever, and they’re all secured with 2FA now.

However, on one of them, it installs fine, but when I go into users and try and set a 2fa code, it generates a barcode which looks weird (as in less data than the others), and when I try and scan this on Google Authenticator app, it says

Invalid barcode
The barcode ‘no text’ is not a valid authentication token barcode.

I tried changing the site name, deleting and reinstalling the plugin, and it’s still persisting. When I try create new secret, it doesn’t do anything to change the code (and therefore regenerate the qr code)

Any assistance would be great.

Thanks