Harry O,
Are you updating 4.4 to 4.5?
I just tried clean installing 4.4.10 again using the same instructions, and it broke down
(see my next msg about the wildfly startup).
It didn't matter if I downgraded early (just after the VM started) or late (as soon as
it was waiting for the health check URL.).
I didn't try 4.5 (because I had 4.4 working before....), that's next.