This based on 30-40 cover art additions since the new beta upgrade.

Eventunally all the uploads go through, but 100% failed on the first attempt. Usually would go through on 2nd attempt with a few taking 3-5 attempts.

Error codes (from the failed original uploads):
"An error occurred trying to communicate with the Internet Archive servers. Please wait a few moments and try again.

Below is the error information. If you wish to file a bug report, you may do so at our bug tracker. The information below will help, so please be sure to include it!

read timeout at /home/musicbrainz/carton-local/lib/perl5/Net/HTTP/Methods.pm line 268."

or

"An error occurred trying to communicate with the Internet Archive servers. Please wait a few moments and try again.

Below is the error information. If you wish to file a bug report, you may do so at our bug tracker. The information below will help, so please be sure to include it!

<?xml version='1.0' encoding='UTF-8'?> <Error><Code>InternalError</Code><Message>We encountered an internal error. Please try again.</Message><Resource>Failed to get necessary short term bucket lock for mbid-052253d0-ca78-4a3a-b45f-312501aad43c, please try again</Resource><RequestId>9a3efe4d-c531-4dfd-8260-e3d525ba53f2</RequestId></Error>"

or

Cover art can’t be uploaded to this release because we don’t own the associated item at the Internet Archive. Please contact us at https://metabrainz.org/contact so we can resolve this.