Comment 3 for bug 1804615

There was a massive change in 13.23 if you see the entries for "insecure" or commit "2a5d408733" in http://downloads.asterisk.org/pub/telephony/asterisk/ChangeLog-13-current

I must admit you as an asterisk user might get more out of all of this, give it a read.
It might explain why 13.23 from upstream works for you.

That said it would be great if you could test both
13.22 from Cosmic
and
13.23 from current Disco-proposed

As it would help to trim down the list of related patches to consider.