diff --git a/docs/plans/original-completion-2026-10-02/execution/p28-01/collector/test_collect_p28_01.py b/docs/plans/original-completion-2026-10-02/execution/p28-01/collector/test_collect_p28_01.py
index dfb6378..690c113 100644
--- a/docs/plans/original-completion-2026-10-02/execution/p28-01/collector/test_collect_p28_01.py
+++ b/docs/plans/original-completion-2026-10-02/execution/p28-01/collector/test_collect_p28_01.py
@@ -11,6 +11,7 @@ import tempfile
 import time
 from types import SimpleNamespace
 import unittest
+import uuid
 from unittest.mock import patch
 
 sys.dont_write_bytecode = True
@@ -755,7 +756,7 @@ class ReportTests(unittest.TestCase):
                                        "--headless", "--path", str(stage), "--check-only", "--script", "probe"]
                             row = collector.run_private_engine(
                                 standard, SimpleNamespace(run_phase=owned), command, base / label, {},
-                                stage, public, "TheTree-PCK-tests-" + base.name + "-" + label)
+                                stage, public, "TheTree-PCK-tests-" + uuid.uuid4().hex + "-p28-" + label)
                             row.update(phase=label, parse_na=copy.deepcopy(collector.PARSE_NA),
                                        source_preserved=True, player_preserved=True, script_pins=pins,
                                        stage_before_sha256=collector.digest(source),
@@ -842,9 +843,9 @@ class ReportTests(unittest.TestCase):
             public = b'[application]\n\nconfig/name="The Tree"\n'
             (base / "project.godot").write_bytes(public)
             with patch.object(collector, "run_engine", side_effect=RuntimeError("owned failure")), \
-                    self.assertRaises(RuntimeError):
+                    self.assertRaisesRegex(RuntimeError, "owned failure"):
                 collector.run_private_engine(standard, None, [], base / "parse-base", {}, base,
-                                             public, "TheTree-PCK-tests-" + base.name)
+                                             public, "TheTree-PCK-tests-" + uuid.uuid4().hex + "-p28-parse-base")
             self.assertEqual((base / "project.godot").read_bytes(), public)
 
     def test_j3_guard_and_whole_inventory(self):