Tutorial seems faulty

I’ve just installed the Windows 10 desktop version, so total noob here. When I first opened Xod, it offered me a tutorial, which I jumped into. I got the first couple of lessons ok, And it advanced to the next lesson just fine. But after the lesson on simulating the design, it stopped advancing. I’m unable to figure out how to move on within Xod. I went to the on-line tutorial, and it progresses fine. The drawback is having to jump between Xod and a web page to work on the lesson. Am I missing something?

worst-case, you can use the browser window on the left to select the next patch in the tutorial.