diff --git a/barker/barker/printing/kot.py b/barker/barker/printing/kot.py
index b0fe55d..66522c8 100644
--- a/barker/barker/printing/kot.py
+++ b/barker/barker/printing/kot.py
@@ -99,7 +99,7 @@ def print_kot(voucher_id: uuid.UUID, db: Session):
                 )
             )
             .order_by(SectionPrinter.menu_category_id)
-        ).one()
+        ).first()
         key = (printer.id, copies)
         if key not in my_hash:
             my_hash[key] = (printer, [])
diff --git a/barker/barker/routers/section_printer.py b/barker/barker/routers/section_printer.py
index 16dbc91..295934d 100644
--- a/barker/barker/routers/section_printer.py
+++ b/barker/barker/routers/section_printer.py
@@ -29,18 +29,16 @@ def save(
     try:
         with SessionFuture() as db:
             current = []
-            default_copies = 0
+            default_id = uuid.uuid4()
             for mcs in data:
                 if mcs.menu_category is None and mcs.printer is None:
                     raise ValueError("Please choose a default printer")
                 if mcs.printer is None:
                     continue
-                if mcs.menu_category is None:
-                    default_copies = mcs.copies
                 stmt = (
                     pg_insert(SectionPrinter)
                     .values(
-                        id=uuid.uuid4(),
+                        id=default_id if mcs.menu_category is None else uuid.uuid4(),
                         menu_category_id=mcs.menu_category.id_ if mcs.menu_category is not None else None,
                         section_id=id_,
                         printer_id=mcs.printer.id_,
@@ -59,7 +57,7 @@ def save(
                         and_(
                             SectionPrinter.section_id == id_,
                             SectionPrinter.menu_category_id == None,  # noqa: E711
-                            SectionPrinter.copies != default_copies,
+                            SectionPrinter.id != default_id,
                         ),
                         and_(
                             SectionPrinter.section_id == id_,
@@ -121,15 +119,19 @@ def report(section_id: Optional[uuid.UUID], db: Session) -> List[schemas.Section
     ).all()
     list_ = []
     for mc_id, mc_name in [(None, None)] + menu_categories:
-        section_printer = db.execute(
-            select(SectionPrinter).where(
-                SectionPrinter.section_id == section_id,
-                SectionPrinter.menu_category_id == mc_id,
+        section_printer = (
+            db.execute(
+                select(SectionPrinter).where(
+                    SectionPrinter.section_id == section_id,
+                    SectionPrinter.menu_category_id == mc_id,
+                )
             )
-        ).scalar_one()
+            .scalars()
+            .one_or_none()
+        )
         list_.append(
             schemas.SectionPrinter(
-                menuCategory=None if mc_id is None else schemas.MenuCategoryLink(id=mc_id, name=mc_name),
+                menuCategory=None if mc_id is None else schemas.MenuCategoryLink(id=mc_id, name=mc_name, products=[]),
                 printer=None if section_printer is None else schemas.PrinterLink(id=section_printer.printer_id),
                 copies=0 if section_printer is None else section_printer.copies,
             )