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Stale MutationObserver records abort callbacks for active observers #58236
Description
Description
The MutationObserver manager explicitly tolerates stale native records when an observer is disconnected between commit and mount. However, encountering one missing registration returns from the entire notification pass, dropping every later record and callback in the same native batch, including records for still-active observers.
Expected behavior
A stale record for a disconnected observer should be ignored while notification continues for all active observers in the batch, matching the equivalent ResizeObserver handling.
React Native Version
0.87.1 and current main
Affected Platforms
New Architecture - All
Activity
react-native-bot commentedon Aug 30, 2026
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react-native-bot commentedon Sep 24, 2026
This issue is waiting for author's feedback since 24 days. Please provide the requested feedback or this will be closed in 7 days.
react-native-bot commentedon Oct 1, 2026
This issue was closed because it has been stalled for 7 days with no activity.