Hi Don
Sounds like the bookmarks which tell ServiceM8 where to loop the Job Materials have been removed.
From Insert > Bookmark add "blockStart_jobMaterial" & "blockEnd_jobMaterial" as such:
[blockStart_jobMaterial]<<(jobMaterial.quantity, jobMaterial.price, jobMaterial.name, jobMaterial,total_price)>>[blockEnd_jobMaterial]
Let me know if you have any questions, and feel free to reach out directly as well. Would love to be able to support you directly on your account as your ServiceM8 Partner!
-Miciah