1) Isolate the browser
- Private window.
- Disable extensions (adblock/privacy).
- Clear cache/cookies.
2) Isolate the network
- Switch networks (Wi‑Fi ↔ 4G/5G).
- Disable VPN/proxy.
3) Sign-in
- Sign in again.
- Confirm the correct account/login method.
4) Listing
- Check for pending validation.
- Confirm category, price, and location.