diff --git a/frontend/packages/dashboard/src/tabs.js b/frontend/packages/dashboard/src/tabs.js
index f8fb9bd8..60feefbb 100644
--- a/frontend/packages/dashboard/src/tabs.js
+++ b/frontend/packages/dashboard/src/tabs.js
@@ -1564,6 +1564,13 @@ window.marked = marked;
     // no-op when the section is missing. `question_added` /
     // `question_resolved` SSE events route through here.
     if (!root) return;
+    // Snapshot open <details> state before wiping the DOM so SSE-triggered
+    // calls (applyQuestionAdded / applyQuestionResolved) preserve it just
+    // as well as the full refreshState path. The double-restore that happens
+    // when renderQuestions is called from inside refreshState is harmless —
+    // restoreOpenDetails is a no-op when the set is empty, and re-opening an
+    // already-open <details> is idempotent.
+    const openDetails = snapshotOpenDetails();
     root.replaceChildren();
     const fmt = (n) => new Date(n * 1000).toISOString().replace('T', ' ').slice(0, 19);
     const allPending = questionsState.pending;
@@ -1741,6 +1748,7 @@ window.marked = marked;
       details.append(hul);
       root.append(details);
     }
+    restoreOpenDetails(openDetails);
   }
 
   // Format a remaining-seconds count as the `⏳ …` TTL chip text on a