1 files changed, 5 insertions, 1 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 747cb74..e762fc8 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/group-page.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/group-page.js
@@ -374,7 +374,11 @@ function GroupPage({ groupId, group, token, username, userId, userPrefs,
         transport.onMusicbrainzEnabled = (enabled) =>
           setMusicbrainzConfig((prev) => ({ ...(prev || {}), enabled }));
         transport.onRootsChanged = (msg) => {
-          if (msg.roots) {
+          // `msg.roots &&` would accept `[]`, and an empty array is truthy —
+          // so a node that could not describe its roots would blank the
+          // operator's table on an op that actually succeeded. A group always
+          // has at least one root, so nothing legitimate is dropped here.
+          if (Array.isArray(msg.roots) && msg.roots.length) {
             setNodeRoots(msg.roots);
           }
         };