I think I might know what's going on, not script-wise.
Not sure if this is my computer or just how Blockland is but when I start up my computer, and go into Blockland, and enter my key, I'm logged into Blockland, but appears not to be so in RTB. It took me a little bit to figure out I have to quit the current Blockland session and start a new one, then I'm all logged into RTB. I've never really sought what it would look like if I tried opening RTB after only opening a single session.
If your only starting up a single session right now, then try what I said above and see what happens.