ACS 5.2.0.26 Upgrade Hangs

I had a problem when upgrading from 5.1.0.44 to 5.2.0.26. I’d see the following: Saved the running configuration to startup successfully Then the CLI would just hang, after an hour I CTRL+C ‘d out of it. Stopping the ACS process and re-running the install fixed the issue. ACS/user# application stop acs Stopping ACS. Stopping Management