I recently realized that there was trouble with the service pack 6.5.8 installation on our test author server. I found this because when I upgraded the uber jar I started to receive Jackson dependency errors. When I checked my Oak version, I see it is reporting 1.22.5 but when I check other servers where I've installed the SP, I see 1.22.6 and no Jackson dependency errors.
I've tried using package manager to reinstall the service pack. I didn't receive any messages in the error.log and the two discrepancies were not cleared up.
Can the service pack be reinstalled? I realize 6.5.9 is out now but would prefer to have all our servers running 6.5.8 for a little longer.
Since, you are able to install it successfully on other servers, I would suggest you to try to uninstall and re-install on the test server as well. Just make sure that no one is using that server, while the installation is going on.