Hi,
I just updated my computer with both Decor8 1.00 and Start8 1.03. I am running Windows 8 Pro (everything is updated).
Upon a restart, the Lock screen is correct (I selected the piano background applied with Decor8 in before the restart). I then login, wait for everything to startup, including Fences 2.01 and Start8 1.03. Everything is the latest releases.
Then, sign out, and my Lock Screen is back to the original Seattle background.
Just thought I'd let you know. I am also connected to a domain, so that may have something to do with it.
-Dean