Hey guys, like Amra said, we are working on a quick version of 7.4.2
As I understand it, this captcha warning indicates 5% or 10% of the time.
You've already seen that everyone now needs a Google "site key" to use the captcha for each individual site. The contact form will be disabled by default until it is set in your settings. A warning will appear in your "health state of the store" if you have not already done so
All the details to come with the release