I've filed a support request, and got the reply that the thing is broken, but they are aware of it, so I guess it'll be fixed soonish. I mostly wondered whether it could be because of my imported style, because a little while ago when the preview didn't work it was because of that, but apparently this is something else.

But I'm glad you like the Terminator. Certainly if I had a reprogrammable one and a garden that thing would do all the digging and weeding and such...