Serious UX issue -
If any validation errors, form displays tooltip flags so they can be fixed - all good (just not obvious to user at submit button that errors were found - suggest a message prompting user to scroll up, or to scroll to anchor of first error - scrollto #error ) If I can solve this, great, but not critical. All pretty good.
BIG ISSUE, after fixing errors, user forgets to re-check I am not a robot, or checks it and missed clicking all the correct pictures by one ... then lots of data disappears. What can be done to not trigger a form reset/clear on a recaptcha error so they can just try again to make Google happy.