diff --git a/hr_timesheet_sheet_prefill/models/hr_employee.py b/hr_timesheet_sheet_prefill/models/hr_employee.py
index 3cd86ae..393051b 100644
--- a/hr_timesheet_sheet_prefill/models/hr_employee.py
+++ b/hr_timesheet_sheet_prefill/models/hr_employee.py
@@ -12,9 +12,11 @@ class Employee(models.Model):
         comodel_name="project.project",
         relation="hr_employee_project_project_rel",
         string="Projects",
+        domain=[("active", "=", True)],
     )
 
-    # This exists solely for extension in hr_timesheet_sheet_prefill_multi.
+    # This exists solely extension in hr_timesheet_sheet_prefill_multi, and also
+    # to filter out inactive projects.
     def all_prefill_projects(self):
         self.ensure_one()
-        return self.project_ids
+        return self.project_ids.filtered(lambda project: project.active)
diff --git a/hr_timesheet_sheet_prefill_multi/models/hr_employee.py b/hr_timesheet_sheet_prefill_multi/models/hr_employee.py
index 40a08fb..e4eb137 100644
--- a/hr_timesheet_sheet_prefill_multi/models/hr_employee.py
+++ b/hr_timesheet_sheet_prefill_multi/models/hr_employee.py
@@ -16,10 +16,18 @@ class HrEmployee(models.Model):
     )
 
     def all_prefill_projects(self):
-        self.ensure_one()
-        # The only purpose of the below code is to sort the projects according
-        # to the sequence of the prefill records.
-        projects = self.env["project.project"].browse()
-        for prefill in self.timesheet_prefill_ids.sorted():
-            projects += prefill.project_project_id
-        return projects
+        projects = super().all_prefill_projects()
+        # By searching, we get prefills sorted by sequence.
+        prefills = self.env["hr_timesheet.sheet.prefill"].search(
+            [
+                ("project_project_id", "in", projects.ids),
+                ("hr_employee_id", "=", self.id),
+            ]
+        )
+        # Instead of doing `prefills.mapped("project_project_id")`, we manually
+        # create the recordset. This is because the recordset MAY contain
+        # duplicates, and `mapped()` removes duplicates.
+        result = self.env["project.project"]
+        for prefill in prefills:
+            result += prefill.project_project_id
+        return result
diff --git a/hr_timesheet_sheet_prefill_multi/tests/test_prefill_multi.py b/hr_timesheet_sheet_prefill_multi/tests/test_prefill_multi.py
index f8bf60e..8670e20 100644
--- a/hr_timesheet_sheet_prefill_multi/tests/test_prefill_multi.py
+++ b/hr_timesheet_sheet_prefill_multi/tests/test_prefill_multi.py
@@ -27,6 +27,29 @@ def setUp(self):
             }
         )
 
+    def test_all_prefill_projects_filtered_sorted(self):
+        """Prefill projects are sorted and filtered."""
+        project_03 = self.env["project.project"].create({"name": "Project 03"})
+        self.project_02.active = False
+
+        self.employee.timesheet_prefill_ids = [
+            (0, False, {"project_project_id": self.project_01.id, "sequence": 1}),
+            (0, False, {"project_project_id": self.project_02.id, "sequence": 2}),
+            (0, False, {"project_project_id": project_03.id, "sequence": 3}),
+        ]
+        sheet = self.env["hr_timesheet.sheet"].create(
+            {
+                "employee_id": self.employee.id,
+                "date_start": "2024-01-01",
+                "date_end": "2024-01-01",
+            }
+        )
+        self.assertEqual(len(sheet.timesheet_ids), 2)
+        used_projects = sheet.timesheet_ids.mapped("project_id")
+        self.assertIn(self.project_01, used_projects)
+        self.assertNotIn(self.project_02, used_projects)
+        self.assertIn(project_03, used_projects)
+
     def test_project_ids_still_works(self):
         """You can still use project_ids on hr.employee as normally. It will
         create prefill records.
@@ -62,9 +85,9 @@ def test_project_ids_still_works(self):
     def test_sequenced_repeated_prefills(self):
         """You can repeat and sequence prefills."""
         self.employee.timesheet_prefill_ids = [
-            (0, False, {"project_project_id": self.project_01, "sequence": 1}),
-            (0, False, {"project_project_id": self.project_02, "sequence": 2}),
-            (0, False, {"project_project_id": self.project_01, "sequence": 3}),
+            (0, False, {"project_project_id": self.project_01.id, "sequence": 1}),
+            (0, False, {"project_project_id": self.project_02.id, "sequence": 2}),
+            (0, False, {"project_project_id": self.project_01.id, "sequence": 3}),
         ]
 
         # Sanity check.