Solus just deletes upgrade files
I've downloaded the 2013 Spring release and did an upgrade to a trial migration of SIMS to SQL 2012 and Windows 2012 without issues but at that time did not upgrade our live system. Now every time I copy the upgrade files back to our setups directory and run solus, no downloads are found, obviously, but it also deletes the files I've copied back into the setups directory and shows no upgrades available. This is using solus 2. The trial migration to 2012 is on a different server so should not have affected our live system on Windows 2003 and SQL 2008 R2.
I haven't as yet asked for the upgrade to be re-released.