diff --git a/js/services/nostrService.js b/js/services/nostrService.js
index 8b3bf168..fe226e38 100644
--- a/js/services/nostrService.js
+++ b/js/services/nostrService.js
@@ -2134,6 +2134,18 @@ export class NostrService {
 
   async handleEditVideoSubmit({ originalEvent, updatedData, pubkey }) {
     const result = await this.nostrClient.editVideo(originalEvent, updatedData, pubkey);
+    // #52: ingest the edited (signed) event locally — the same optimistic path
+    // new publishes use (#46). The edit is a replaceable event; without this the
+    // grids re-render from cache showing the PRE-edit version until relays echo
+    // the update back. Ingesting replaces the old version in the active store
+    // (newest-wins) and emits videos:updated so grids refresh immediately.
+    if (result && typeof result === "object" && result.id) {
+      try {
+        this.ingestLocalVideoEvent(result);
+      } catch (error) {
+        this.log("[nostrService] Failed to ingest edited video locally", error);
+      }
+    }
     this.emit("videos:edited", { originalEvent, updatedData, pubkey, result });
     return result;
   }
diff --git a/tests/services/nostr-service.test.mjs b/tests/services/nostr-service.test.mjs
index 8d36d9eb..f47ce03a 100644
--- a/tests/services/nostr-service.test.mjs
+++ b/tests/services/nostr-service.test.mjs
@@ -84,6 +84,37 @@ describe("NostrService", () => {
   // Account switch must not leave the previous account's DMs on screen: the DM
   // store lives here (nostrService), so a switch clears the in-memory store. With
   // keepSnapshot it preserves each account's persisted cache for fast switch-back.
+  // #52: an edit must refresh the grids immediately — the edited signed event
+  // is ingested locally (same optimistic path as publish) instead of waiting
+  // for the relay echo of the replaceable event.
+  describe("handleEditVideoSubmit", () => {
+    it("ingests the edited event locally and emits videos:edited", async () => {
+      const signed = { id: "edited-1", kind: 30078, pubkey: "p", created_at: 2000 };
+      mockClient.editVideo = mock.fn(async () => signed);
+      const ingested = [];
+      mockClient.ingestLocalVideoEvent = mock.fn((evt) => {
+        ingested.push(evt);
+        return { id: evt.id, deleted: false, invalid: false };
+      });
+      const events = [];
+      const originalEmit = nostrService.emit;
+      nostrService.emit = (name, detail) => events.push(name);
+      try {
+        const result = await nostrService.handleEditVideoSubmit({
+          originalEvent: { id: "orig" },
+          updatedData: { title: "t" },
+          pubkey: "p",
+        });
+        assert.equal(result, signed);
+      } finally {
+        nostrService.emit = originalEmit;
+      }
+      assert.deepEqual(ingested, [signed], "edited event ingested for instant grid refresh");
+      assert.ok(events.includes("videos:updated"), "grids notified");
+      assert.ok(events.includes("videos:edited"));
+    });
+  });
+
   describe("clearDirectMessages", () => {
     it("empties the in-memory DM store and resets the active actor", () => {
       nostrService.dmMessages = [{ id: "m1" }, { id: "m2" }];
diff --git a/todo/TODO_2026-06-20_pre-launch.md b/todo/TODO_2026-06-20_pre-launch.md
index 06e6bae0..68004b87 100644
--- a/todo/TODO_2026-06-20_pre-launch.md
+++ b/todo/TODO_2026-06-20_pre-launch.md
@@ -1629,11 +1629,13 @@ passphrase-encrypted). Items 51, 56, 57 are all facets of that.
       in the storage/wallet panes for users who set it up there rather than via a prompt.
 
 ### 52. After editing a video, the video grids don't refresh to show the update (BUG)
-- [ ] Editing a video leaves the grids showing the pre-edit version until a manual
-      reload. Publishing a NEW video already refreshes the feed (**#46**); the **edit**
-      path needs the same post-publish grid refresh (title/thumbnail/description/url).
-      Likely wire the edit-submit success into the same `refreshAllVideoGrids` /
-      `onVideosShouldRefresh` path #46 uses, keyed by `videoRootId`.
+- [x] **FIXED 2026-07-02.** The edit flow already re-ran `loadVideos()`, but the cache
+      still held the PRE-edit version: unlike new publishes (#46), the edit never
+      ingested its signed replaceable event locally, so grids re-rendered stale until
+      relays echoed the update. `nostrService.handleEditVideoSubmit` now ingests the
+      edited event via `ingestLocalVideoEvent` (newest-wins replace in the active
+      store + `videos:updated`), so grids show the new title/thumbnail/etc.
+      immediately. Test: `tests/services/nostr-service.test.mjs` (+1).
 
 ### 53. Channel-profile link in the video player modal doesn't work (BUG)
 - [x] **FIXED 2026-07-02.** Event-name mismatch: `VideoModal.handleCreatorNavigation`