All notes missing in orchestral part

I have just finished a large orchestral work with everything now complete including all instrumental parts except the 1st Horn (which only displays as bars rest). This part is fine and complete in the full score and all other parts are as expected. Can anyone help with the recovery of this part, please?

Try selecting the Horn in the right panel (layout) in setup mode, and make sure it’s selected in the left panel also (player). Also that the flow is ticked.

Jesper

Thanks jesele for the reply. I’ve done as you suggested but now I have both 1st and 2nd horn combined in one part. I can live with this and, in part it solves my problem. I think I must have done something ill-considered earlier in the process. Anyway, Thanks again.

I think you may accidentally deleted the first horn’s layout.
Try to recreate it.

Yes, here.

Jesper

Thank you both for your help with this. Normality has been restored and I now have Horn 1 and Horn 2 on separate parts. Thanks again from a relieved new (ish) user.