Yesterday I spent hours debugging my Flutter app. The .aab looked fine in Android Studio, but both the emulator (16kb) and Play Console showed errors. The issue is a bug in Android Studio Narwhal 2025.1.2, where AAB alignment isn’t checked properly (APKs are fine).

https://github.com/flutter/flutter/issues/173949#issuecomment-3220455340
https://issuetracker.google.com/issues/432782053?pli=1

The fix: install the RC version (2025.1.3), upgrade NDK to r28, and update Gradle. I used gradle-8.14.2-all.zip since I couldn’t find the alpha mentioned.

Hope I save you some time if you are on the same situation. 😊