Same here. Even with zero activated plugins the loop still exist. “Congratulations! Your site is validated. Addons are now unlocked.” And immediately jumps to “almost finished” box to re-enter the license code. The validation worked fine with staging URL, but not with production URL. Any advice without “hacking” some database stuff?
PHP 7.4 / WP 5.5.1 / X-Theme Pro
Addition: It’s working now and I figured out it’s maybe just a matter of time till everything’s fix or in connection to each other. Tried this with other licences, always the same issue. 7, 8, 9 times of validation. But after approx one hour without doing anything it works. But actually the issue exists and could drive people crazy.