Upgrade from 12.1.49.x to 50.x+ or 13.x re-captcha causes error at login page.
Setup for ReCaptcha on 12.1.50.x + or 13.0.x causes error at login page.
Error on login is "Error for site owner: Invalid Site Key"
ns.log has error message - 0-PPE-2: default AAATM Message 16977 0: "nFactor: Could not find matching captcha policy"
ReCaptcha on Netscaler as of 12.1.50.x and 13.x + uses a Captcha action as opposed to a Webauth action for the authentication policy action.