diff --git a/src/main/rules/SameRecordFieldUpdates.ts b/src/main/rules/SameRecordFieldUpdates.ts
index 6f726f2..d7c1281 100644
--- a/src/main/rules/SameRecordFieldUpdates.ts
+++ b/src/main/rules/SameRecordFieldUpdates.ts
@@ -34,25 +34,27 @@ export class SameRecordFieldUpdates extends RuleCommon implements core.IRuleDefi
     );
 
     if (!isBeforeSaveType || !isQualifiedTriggerTypes) {
-      return new core.RuleResult(this, []);
+      return new core.RuleResult(this, results);
     }
 
-    const resultDetails: core.ResultDetails[] = [];
-
     const potentialElements = flow.elements?.filter(
       (node) => node.subtype === "recordUpdates"
     ) as core.FlowNode[];
 
+    if (potentialElements == null || typeof potentialElements[Symbol.iterator] !== "function") {
+      return new core.RuleResult(this, results);
+    }
+
     for (const node of potentialElements) {
       if (
         typeof node.element === "object" &&
         "inputReference" in node.element &&
         node.element.inputReference === "$Record"
       ) {
-        resultDetails.push(new core.ResultDetails(node));
+        results.push(new core.ResultDetails(node));
       }
     }
 
-    return new core.RuleResult(this, resultDetails);
+    return new core.RuleResult(this, results);
   }
 }
diff --git a/tests/SameRecordFieldUpdates.test.ts b/tests/SameRecordFieldUpdates.test.ts
index 98ec37e..dab5124 100644
--- a/tests/SameRecordFieldUpdates.test.ts
+++ b/tests/SameRecordFieldUpdates.test.ts
@@ -170,4 +170,76 @@ describe("SameRecordFieldUpdates", () => {
     expect(expectedRule).to.be.ok;
     expect(expectedRule?.occurs).to.be.true;
   });
+
+  it("should not error when start element is not existing", async () => {
+    const testData: ParsedFlow = {
+      flow: {
+        elements: [
+          {
+            element: {
+              description: "test",
+              name: "Update_triggering_records",
+              label: "Update triggering records",
+              locationX: "176",
+              locationY: "287",
+              inputAssignments: { field: "Active__c", value: { stringValue: "Yes" } },
+              inputReference: "$Record",
+            },
+            subtype: "recordUpdates",
+            metaType: "node",
+            connectors: [],
+            name: "Update_triggering_records",
+            locationX: "176",
+            locationY: "287",
+          },
+          {
+            element: {
+              locationX: "50",
+              locationY: "0",
+              connector: { targetReference: "Update_triggering_records" },
+              object: "Account",
+              recordTriggerType: "Create",
+              triggerType: "RecordBeforeSave",
+            },
+            subtype: "start",
+            metaType: "node",
+            connectors: [
+              {
+                element: { targetReference: "Update_triggering_records" },
+                processed: false,
+                type: "connector",
+                reference: "Update_triggering_records",
+              },
+            ],
+            name: "flowstart",
+            locationX: "50",
+            locationY: "0",
+          },
+        ],
+      },
+    } as {} as ParsedFlow;
+
+    const ruleResult: RuleResult = rule.execute(testData.flow as Flow);
+
+    expect(ruleResult.occurs).to.be.false;
+  });
+
+  it("should not error when elements are missing", async () => {
+    const testData: ParsedFlow = {
+      flow: {
+        start: {
+          locationX: "50",
+          locationY: "0",
+          connector: { targetReference: "Update_triggering_records" },
+          object: "Account",
+          recordTriggerType: "Create",
+          triggerType: "RecordBeforeSave",
+        },
+      },
+    } as {} as ParsedFlow;
+
+    const ruleResult: RuleResult = rule.execute(testData.flow as Flow);
+
+    expect(ruleResult.occurs).to.be.false;
+  });
 });