Yes, I did notice the others didn't get upgraded. I'll have to come back to this shortly and see what's not set up correctly.
I did have a look at the SUM logfile in /usr/sap/<SID>/SUM/log/lmtp.log. It does show the the DB server at 1.00.53 and the Client/Studio at 1.00.46, but I see where it says "No need to update the system. The current SP level of the system is the latest one available on SAP Service Marketplace"
Since 53 at least was the latest, that's a little puzzling.
