No staves appear, just big blue box

I’ve tried twice tonight to create a new project with one flow, and this is the only thing I see (attached screenshot). Am I missing something? I have successfully created projects in Dorico before.
Screen Shot 2016-10-26 at 12.53.45 AM.png

Go to setup mode, and click on your chosen layout. Does it have flows and players assigned to it?

Oh! I see: I must have inadvertently unchecked the box next to the player. Thanks for your help–I try not to post for every little thing that happens, but occasionally I just can’t get the bottom of something.

This might also be the fault of a bug addressed here: https://www.steinberg.net/forums/viewtopic.php?f=246&t=103997