That is odd if the upgrade failed via softaculous as this should be completely managed.
The only thought that comes to mind is the DB connection has changed as this could be the only thing that would automatically send the app back to the setup screen.
I’m not sure what happened…but after reinstating the older version…and waiting a bit of time…everything seems to be working ok. It is not the latest version mind you, but given the issues, I am fine with that for now.
I may try to upgrade again later (earlier in the invoicing period!)