diff --git a/plugin-designs/my-upg-100-list/upg-100-list.vue b/plugin-designs/my-upg-100-list/upg-100-list.vue
index bdaf73f15..0a09f174d 100644
--- a/plugin-designs/my-upg-100-list/upg-100-list.vue
+++ b/plugin-designs/my-upg-100-list/upg-100-list.vue
@@ -3088,6 +3088,9 @@ onBeforeUnmount(() => {
       if (window.__UPG_SEARCH__ === _mySearchHandle) delete window.__UPG_SEARCH__
       if (window.__UPG_MAP__ === _myMapHandle) delete window.__UPG_MAP__
       if (window.__UPG_SELECT__ === _mySelectHandle) delete window.__UPG_SELECT__
+      // Copy / Export CSV's last text (the gates read them back); released with the rest of this map's hooks.
+      delete window.__UPG_LAST_CLIPBOARD__
+      delete window.__UPG_LAST_CSV__
     } catch (_) { /* a frozen or cross-origin window must not break teardown */ }
   }
 })