Unable to see staves in template

When I open the Brass Band template in Full score view I cannot see any staves (see attached jpeg). Any idea what I have done wrong and what can be done to correct it?
Dorico Template screen.jpg

Take a look here, at Ian’s answer (no players assigned to flow/layout): https://www.steinberg.net/forums/viewtopic.php?f=246&t=104424&p=574296
Does that resolve your issue?

That has sorted it - Thanks Stefan