After adding Captcha V3, we get “Token to validate form already expired.”

Hi there,

We’ve got two websites now where, after adding Google Captcha V3, we get this error when testing the contact form in Enfold:

Token to validate form already expired.
Form could not be submitted. Please reload page and try again.
Transient to verify form was missing or expired.

We’ve tried:
1. Clearing and disabling cache
2. Updating all plugins
3. Updating Enfold to latest version
4. Re-saving the captcha keys
5. Assigning new captcha keys
6. Switching to Captcha V2 only

If we switch the form’s security to use the Enfold numerical captcha, that works. However neither Captcha V2 or V3 will work.

Please kindly advise?

Thanks
Eric