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Chrome Profile Sync Not Working After Update: Fixes - Cloudflare 521 Error Troubleshooting Checklist-VS Code npm Permission Denied Fix

Updated 2026-07-28 10:23:01browser-issues
Chrome Profile Sync Not Working After Update: Fixes - Cloudflare 521 Error Troubleshooting Checklist-VS Code npm Permission Denied Fix
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.