has any body had a successfully upgrade from Veeam backup for AWS v2 to v3? I would assume yes but given it's only been out 5 weeks? not sure who was brave enough to try over Christmas

My issue (case #04584396 logged this morning, support team is working on it) is after the upgrade I get the message
502 Bad Gateway
nginx/1.14.0 (Ubuntu)
I can still access the //updater page and ssh to the server so I could pull the logs and upload them.
Looking in /var/log/veeam/backup/Service.log I see a lot of errors about postgresql not being available
Looking in the postgresql log (/var/log/postgresql/postgresql-10-main.log) I have the following errors
2021-01-12 01:31:42.465 UTC [7621] HINT: Future log output will appear in directory "log".
Can't exec "": No such file or directory at /usr/bin/pg_ctlcluster line 211.
Error: could not exec start -D /var/lib/postgresql/10/main -l /var/log/postgresql/postgresql-10-main.log -s -o -c config_file="/etc/postgresql/10/main/postgresql.conf" : No such file or directory
I'll update with the solution once support have a fix.