diff --git a/workbench-ui/src/app/trace/practiceEvidencePanelModel.test.ts b/workbench-ui/src/app/trace/practiceEvidencePanelModel.test.ts
index 180c64db..fc6be9f7 100644
--- a/workbench-ui/src/app/trace/practiceEvidencePanelModel.test.ts
+++ b/workbench-ui/src/app/trace/practiceEvidencePanelModel.test.ts
@@ -162,7 +162,7 @@ describe("practice evidence panel model", () => {
     });
 
     const sealed = model.detailSections.find((section) => section.title === "Sealed trace");
-    expect(sealed?.items[0].rows).toEqual(
+    expect(sealed?.items[0]?.rows ?? []).toEqual(
       expect.arrayContaining([
         { key: "geometric_search_run_id", value: "gsr_1" },
         { key: "replay_refusal_ids", value: "rr_1" },
@@ -181,7 +181,7 @@ describe("practice evidence panel model", () => {
     expect(model.chainRows).toEqual([{ key: "trace_refusal", value: "recorded — ptr_1" }]);
 
     const refusal = model.detailSections.find((section) => section.title === "Trace refusal");
-    expect(refusal?.items[0].rows).toEqual(
+    expect(refusal?.items[0]?.rows ?? []).toEqual(
       expect.arrayContaining([
         { key: "trace_refusal_id", value: "ptr_1" },
         { key: "reason_codes", value: "missing_residual" },
@@ -189,4 +189,4 @@ describe("practice evidence panel model", () => {
       ]),
     );
   });
-});
+});
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