Disappearance of the code in the tutorial

I’m under Lubuntu linux and I’m using Supercollider 3.10 with Scide. In the tutorial the lines of example code no longer appear, where can it come from?

SC 3.10.4 was just released – is it still a problem for you in the new version?

A few other users reported this awhile ago but I can’t find the issue report now. It’s worth checking after updating.