I already posted this in the update thread, but unfortunately this never got answered…
I installed the 9.5.10 update, which is also indicated in the installer app. However, on my CB9.5 splash screen it still refers to 9.5.0. Also when viewing the ‘about cubase’ entry.
Do you have two different versions of Cubase installed? For example, Cubase Pro and Cubase Elements? Perhaps you updated one and are starting the other?
I’d guess this may be the problem. Try running the update again and check if there is a Custom Installation option. Did you get a message last time to say it had updated successfully?