Custom score/ nothing in page view or engrave

Hi

I’ve created a new score layout in pro. but nothing is showing in page view or engrave. All the parts do show in galley.
This is in order to have an alternate version of the choir and vocal parts in the orchestral score.

In Layout - the required instruments and flows seem to be all included and ticked.

I’ve inlcluded a screen shot

Thanks for your help and suggestions

Best

Giles

Take a look at the master pages for this layout. Perhaps you’ve inadvertently deleted the music frames from them.

If you can’t figure it out, Giles, please zip up and attach the project here, and we’ll be able to help you resolve the problem quickly, I’m sure.