2 files changed, 25 insertions, 6 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/static/group-page.js b/packages/meshbay-hub/src/meshbay_hub/static/group-page.js
index a1e6411..0a43724 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/group-page.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/group-page.js
@@ -244,6 +244,13 @@ function GroupPage({ groupId, group, token, username, userId, userPrefs,
   // enrichment (duration/thumb_hash/display_title/...) arriving for a file
   // already in the table — same id, new fields (see group_index.py diff()).
   const applyIndexDelta = useCallback((deltaMsg) => {
+    // The roots table rides on the delta as of MNP 1.1. Before that it
+    // travelled only on a full index_sync, which is sent on request — so a
+    // root added, removed, ejected or plugged by anyone left every other
+    // client's directory table stale until they reloaded the page.
+    if (Array.isArray(deltaMsg.roots) && deltaMsg.roots.length) {
+      setNodeRoots(deltaMsg.roots);
+    }
     setEntries((prev) => {
       const deletions = new Set(deltaMsg.deletions || []);
       const kept = prev.filter((e) => !deletions.has(e.id));
diff --git a/packages/meshbay-hub/src/meshbay_hub/static/group-settings.js b/packages/meshbay-hub/src/meshbay_hub/static/group-settings.js
index ce36a40..9646405 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/group-settings.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/group-settings.js
@@ -42,7 +42,8 @@ import * as platform from './platform.js';
  *   nodeDetected   — whether the loopback node API answers
  *   readOnly       — suppress every edit control
  *   onRootsChange  — called after a change, to re-read the loopback list
- *   onRefreshIndex — full index refresh, needed after an add or a remove
+ *   onRefreshIndex — full index refresh. Not called after a root change: see
+ *                    `run()` for why the node's own push is what settles it
  *   mode           — "live" (default) or "local"
  *   localRoots / onLocalRootsChange — the array, in "local" mode
  */
@@ -106,18 +107,29 @@ function SharedDirectoriesTable({ roots, groupId, transport, signFn,
   const rootUrl = (name, suffix = '') =>
     '/api/groups/' + groupId + '/roots/' + encodeURIComponent(name) + suffix;
 
-  const run = useCallback(async (work, { refreshIndex = false } = {}) => {
+  // Deliberately no index refresh after a root change.
+  //
+  // Adding a root makes the node reload, which rescans — minutes on a real
+  // library — and the reload is fire-and-forget for that reason. Fetching the
+  // index in the moment after therefore returns the set from *before* it, and
+  // `applyIndex` writes that over the roots the ack had just delivered: the
+  // new directory appeared for one paint and vanished, which is what "it only
+  // shows up after a refresh" was.
+  //
+  // Nothing is lost by waiting. The ack carries the new table immediately, and
+  // the delta the node pushes when the scan finishes carries it again along
+  // with the files.
+  const run = useCallback(async (work) => {
     setBusy(true); setMsg('');
     try {
       await work();
       if (onRootsChange) await onRootsChange();
-      if (refreshIndex && onRefreshIndex) await onRefreshIndex();
       return true;
     } catch (err) {
       setMsg(platform.bridgeMessage(err));
       return false;
     } finally { setBusy(false); }
-  }, [onRootsChange, onRefreshIndex]);
+  }, [onRootsChange]);
 
   const doUpdateRoot = useCallback(async (rootName, updates) => {
     if (isLocal) {
@@ -171,7 +183,7 @@ function SharedDirectoriesTable({ roots, groupId, transport, signFn,
         await platform.node.call('DELETE', rootUrl(rootName));
         await platform.node.call('POST', '/api/reload');
       } else throw new Error(t('node.root_no_route'));
-    }, { refreshIndex: true });
+    });
     if (ok) setMsg(t('node.root_removed'));
   }, [isLocal, localRoots, onLocalRootsChange, overMnp, overLoopback,
       transport, groupId, signFn, run]);
@@ -203,7 +215,7 @@ function SharedDirectoriesTable({ roots, groupId, transport, signFn,
         await platform.node.call('POST', '/api/reload');
         await platform.watchIndexProgress(groupId, setIndexProgress);
       } else throw new Error(t('node.root_no_route'));
-    }, { refreshIndex: true });
+    });
   }, [isLocal, localRoots, onLocalRootsChange, overMnp, overLoopback,
       transport, groupId, signFn, run]);