Urgent MERN Stack Debugging

Hello My production MERN app needs immediate triage. The most critical blocker is that several React components refuse to refresh their local state, so the UI shows stale data even though the backend is correct. While you are inside the codebase, I also need you to stabilise a few other areas: • JWT sessions are dropping—tokens are set but the user is logged out on page reload, so persistence must be restored. • A handful of Express routes occasionally return different payload shapes for the same request. • MongoDB writes slide past the current validation rules, causing bad documents to sneak in. • Along the way, please clear the minor UI glitches and silence the console warnings we left behind during the last sprint. You will have access to the private repo, the live environment, and a short hand-off video that walks through each bug. I value clean, well-commented commits and at least a minimal test proving the fix (Jest or Mocha is fine). I’ve set aside roughly $10–$20 for this one-day patch cycle; if we work well together there’s a backlog waiting. Send a brief note about a similar production issue you have solved and the stack you used, then let’s get started right away.

Proje No: 40226983