Resolve Razorpay Payment Failures

I need a solid fix for the Razorpay checkout in my Android app. The project is already live— I have both the AAB and a standalone APK—but payments are unreliable. The flow sometimes completes, other times it throws an error without processing the charge. From my own testing it looks like the trouble appears mostly with specific methods such as UPI or certain cards, while other methods go through just fine.

Here is what I can share right away:
• Current builds (AAB + APK) that replicate the issue
• Existing Razorpay integration code and keys
• A short video capture showing the error condition

What I am after is a clean, stable Razorpay implementation that:
1. Opens the payment sheet every time, on every device configuration I can reasonably test.
2. Processes all standard methods—UPI, cards, wallets—without silent failures.
3. Returns a reliable success or failure callback so the app can confirm orders instantly.
4. Ships back to me as an updated, Play-ready AAB and a debug APK, plus the modified source.

If the root cause turns out to be an outdated SDK, wrong integration mode, signature mismatch, or Play policy setting, just patch it and document exactly what you changed so I can keep future releases clean.

You will have remote access to a staging server and test Razorpay keys, and I can supply specific test cards or UPI IDs on request. Once everything passes on my end, we’ll sign off.