Debug Privy Safe Deployment

My Next.js dApp authenticates users with Privy, then hands control to the Polymarket Safe-SDK to spin up a personal Safe so they can transact. The hand-off is where everything breaks: Privy reports a successful sign-in, yet the Safe either never deploys or the SDK returns an undefined address, so the front-end is stuck with no signer to work with.

I’m convinced the snag sits inside the Safe deployment logic, not the Privy auth itself. The app is already wired for the Polymarket SDK, ethers.js, and wagmi, so I’d like you to trace the failure path, patch whatever is blocking the deployment, and hand back a clean, reproducible flow.

Deliverables
• A working sign-in → Safe deployment → address retrieval sequence running locally and on testnet
• Inline comments or a short README outlining what broke and how you fixed it
• Confirmation that subsequent contract calls pick up the newly created Safe without manual refreshes or hacks

Acceptance criteria: after connecting with Privy, the console should log a valid Safe address, the UI should show wallet balance/actions, and no undefined references should surface across page reloads.

I can share the repo, .env configs, and current stack (Next 13, React 18, Privy SDK, Polymarket Safe-SDK, ethers 6). If you’ve wrestled with Safe factories, async race conditions, or Privy session hand-offs before, you’ll feel right at home.