I am experiencing an issue with my Flutter app after uploading it to the Play Store. The app uses Firebase Phone Authentication for OTP verification. When I enter the OTP sent to my phone, I receive an “Invalid OTP” error, even though the OTP is correct.

Here are the steps I followed:

• Implemented Firebase Phone Authentication in my Flutter app.
• Tested the app locally and the OTP verification worked perfectly.
• Uploaded the app to the Google Play Store.
• Installed the app from the Play Store and tried to verify using the OTP sent to my phone.
• Received an “Invalid OTP” error message.