Android App bug fix

There is a small bug in my app. I am sure an expert app developer can solve it in 15 mins. So would love to discuss to start.
All I need straight solution

Issue
I have a web view app where login is also in web view. Implemented auto-detect OTP. it's working perfectly in debug mode. But the release version is causing issues. Hashcode issue ( hashcode mismatch) Generating new and not able to auto-read.
App build with Android Studio. Source code can be provided on request