From 10af9655f207b15028734c831290c4684571ac5b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Miguel=20=C3=81ngel?= <miguel.sierra@heygen.com>
Date: Mon, 18 May 2026 18:20:34 -0400
Subject: [PATCH] fix(studio): restore root-id resolution comment in
 __timelines path

---
 packages/studio/src/player/hooks/useTimelinePlayer.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/studio/src/player/hooks/useTimelinePlayer.ts b/packages/studio/src/player/hooks/useTimelinePlayer.ts
index 5ab8b87e7..4614b3936 100644
--- a/packages/studio/src/player/hooks/useTimelinePlayer.ts
+++ b/packages/studio/src/player/hooks/useTimelinePlayer.ts
@@ -134,6 +134,10 @@ export function useTimelinePlayer() {
       if (win.__timelines) {
         const keys = Object.keys(win.__timelines);
         if (keys.length > 0) {
+          // Resolve the root composition id from the DOM — the outermost
+          // `[data-composition-id]` element is the master. Without this,
+          // Object.keys() order would let a sub-composition's timeline
+          // hijack play/pause/seek and the duration readout.
           const rootId = iframe?.contentDocument
             ?.querySelector("[data-composition-id]")
             ?.getAttribute("data-composition-id");