This is new. Why does adding reCaptcha push the submit button to the next line? I couldn’t find anything by inspecting the page. This form is halfway down on the linked page.
“Breaks the form” is a bit of an exaggeration, don’t you think?
The gap is caused by the padding at the bottom of the form group, which shouldn’t be there in the case of the recaptcha - at least not if it’s not visible.
I have added the problem to the bug tracker.
In the meantime, you can simply remove the padding by adding this to the custom CSS of the form:
We’ve fixed this issue in Bricks 1.10, now available as a one-click update in your WordPress Dashboard.
You can see the full changelog here: Bricks 1.10 Changelog – Bricks
Please let us know if you are still experiencing issues.