This is perhaps related to the issue from Thursday.
I got a 500 status code when requesting https://acme-v01.api.letsencrypt.org/acme/new-authz.
For reference, I’m using the dehydrated client, generating 3 certs for 10, 6, and 7 domains (altnames). I get the above error after 5-6 challenges have been requested for the altnames. I’m currently running the script from Israel. I’ll try again later from a server in us-east-1