You’re seeing the Anubis anti-bot Proof-of-Work check to make sure you’re a...

https://zandersexcellentblog.quillnesty.com/posts/048_how_do_i_reduce_bot_checks_for_logged-in_users_whi

You’re seeing the Anubis anti-bot Proof-of-Work check to make sure you’re a real person and not a bot. Sometimes, JavaScript tools like JShelter block the check from running