Certbot renew errors with "unexpected error: Failed authorization procedure

Ahhh, I believe that you’ve found the issue… Removing the IPV6 record (on the correct registrar) has solved it. Thanks very much, sorry to bother with such a silly issue! I’m curious about why this issue might’ve popped up recently when it’s worked before, but wouldn’t be surprised if I didn’t understand the explanation, haha.

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