diff --git a/components/details/CO2GalvoDetail.tsx b/components/details/CO2GalvoDetail.tsx
index d9926c1a..a89052c9 100644
--- a/components/details/CO2GalvoDetail.tsx
+++ b/components/details/CO2GalvoDetail.tsx
@@ -28,8 +28,8 @@ type Rec = {
 
     // CO₂ Galvo fixed lists
     lens_conf?: { id?: string | number; name?: string | null } | null;
-    lens_apt?: { id?: string | number; name?: string | null } | null;
-    lens_exp?: { id?: string | number; name?: string | null } | null;
+    lens_apt?: { id?: string | number; name?: string | null } | string | number | null;
+    lens_exp?: { id?: string | number; name?: string | null } | string | number | null;
 
     repeat_all?: number | null;
 
@@ -74,6 +74,14 @@ export default function CO2GalvoDetail({ id, editable }: { id: string | number;
     }
     const yesNo = (v: any) => (v ? "Yes" : "No");
 
+    // 🔧 NEW: always stringify possibly-object options for display
+    const optLabel = (v: any): string => {
+        if (v == null) return "—";
+        if (typeof v === "string" || typeof v === "number") return String(v);
+        if (typeof v === "object") return v.name ?? (v.id != null ? String(v.id) : "—");
+        return "—";
+    };
+
     // fetch me id
     useEffect(() => {
         let alive = true;
@@ -233,7 +241,7 @@ export default function CO2GalvoDetail({ id, editable }: { id: string | number;
     };
     const DITHER_LABEL = (v: string | undefined) => (v ? v.charAt(0).toUpperCase() + v.slice(1) : "—");
 
-    // ----- EDIT MODE (restore working behavior) -----
+    // ----- EDIT MODE -----
     if (editMode && rec) {
         const toId = (v: any) =>
         v == null ? "" : typeof v === "object" ? (v.id ?? v.submission_id ?? "") : String(v);
@@ -345,8 +353,9 @@ export default function CO2GalvoDetail({ id, editable }: { id: string | number;
         <Field label="Software" value={softName} />
         <Field label="Laser Source" value={sourceText || "—"} />
         <Field label="Lens Configuration" value={rec.lens_conf?.name || "—"} />
-        <Field label="Scan Head Aperture" value={rec.lens_apt?.name || rec.lens_apt || null} suffix="mm" />
-        <Field label="Beam Expander" value={rec.lens_exp?.name || rec.lens_exp || null} suffix="x" />
+        {/* 🔧 patched to stringify */}
+        <Field label="Scan Head Aperture" value={optLabel(rec.lens_apt)} suffix="mm" />
+        <Field label="Beam Expander" value={optLabel(rec.lens_exp)} suffix="x" />
         <Field
         label="Scan Lens"
         value={