diff --git a/src/pages/VisProgPage/visualProgrammingUI/components/EditorWarnings.tsx b/src/pages/VisProgPage/visualProgrammingUI/components/EditorWarnings.tsx
index d222cd0..e394502 100644
--- a/src/pages/VisProgPage/visualProgrammingUI/components/EditorWarnings.tsx
+++ b/src/pages/VisProgPage/visualProgrammingUI/components/EditorWarnings.tsx
@@ -187,7 +187,9 @@ export function editorWarningRegistry(get: ZustandGet, set: ZustandSet) : Editor
     // remove from severity index
     if (nodeWarnings) {
       nodeWarnings.forEach((warning) => {
-        const warningKey = `${warning.type}:${warning.scope.handleId}`;
+        const warningKey = warning.scope.handleId
+          ? `${warning.type}:${warning.scope.handleId}`
+          : warning.type;
         sIndex.get(warning.severity)?.delete(`${id}|${warningKey}`);
       });
     }