App Crash when opening Plaid in the Flutter app after building APK

[muddasirAlgo]

I am facing an issue with the Plaid i am using flutter_package (version 4.1.1) in my Flutter app. This works fine during development when running the app on an emulator or during debugging. However, when I build the APK using
flutter build apk --release
and try to open the Plaid functionality in the app, then app crashes immediately.

app/build.gradle:

plugins {
id "com.android.application"
id "kotlin-android"
// The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
id "dev.flutter.flutter-gradle-plugin"
}

android {
namespace = "com.example.app"
compileSdk = flutter.compileSdkVersion
ndkVersion = flutter.ndkVersion

compileOptions {
    sourceCompatibility = JavaVersion.VERSION_1_8
    targetCompatibility = JavaVersion.VERSION_1_8
}

kotlinOptions {
    jvmTarget = JavaVersion.VERSION_1_8
}

defaultConfig {
    // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
    applicationId = "com.example.app"
    // You can update the following values to match your application needs.
    // For more information, see: https://flutter.dev/to/review-gradle-config.
    minSdk = 21
    targetSdk = flutter.targetSdkVersion
    versionCode = flutter.versionCode
    versionName = flutter.versionName
}

buildTypes {
    release {
        // TODO: Add your own signing config for the release build.
        // Signing with the debug keys for now, so `flutter run --release` works.
        signingConfig = signingConfigs.debug
    }
}

}

flutter {
source = "../.."
}

dependencies {
// ...
implementation "com.plaid.link:sdk-core:4.6.1"
}

Logs:
E/AndroidRuntime(17287): FATAL EXCEPTION: DefaultDispatcher-worker-3
E/AndroidRuntime(17287): Process: com.example.app, PID: 17287
E/AndroidRuntime(17287): java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType
E/AndroidRuntime(17287): at retrofit2.n.f(SourceFile:21)
E/AndroidRuntime(17287): at retrofit2.H.b(SourceFile:20)
E/AndroidRuntime(17287): at retrofit2.G.c(SourceFile:25)
E/AndroidRuntime(17287): at retrofit2.G$a.invoke(SourceFile:38)
E/AndroidRuntime(17287): at java.lang.reflect.Proxy.invoke(Proxy.java:1006)
E/AndroidRuntime(17287): at $Proxy5.a(Unknown Source)
E/AndroidRuntime(17287): at com.plaid.internal.s9$a.invokeSuspend(SourceFile:66)
E/AndroidRuntime(17287): at kotlin.coroutines.jvm.internal.a.resumeWith(SourceFile:12)
E/AndroidRuntime(17287): at R2.V.run(SourceFile:129)
E/AndroidRuntime(17287): at W2.m$a.run(SourceFile:4)
E/AndroidRuntime(17287): at Y2.k.run(SourceFile:3)
E/AndroidRuntime(17287): at Y2.a.M(SourceFile:1)
E/AndroidRuntime(17287): at Y2.a$c.d(SourceFile:15)
E/AndroidRuntime(17287): at Y2.a$c.p(SourceFile:29)
E/AndroidRuntime(17287): at Y2.a$c.run(SourceFile:1)
E/AndroidRuntime(17287): Suppressed: W2.i: [K0{Cancelling}@2b975e0, Dispatchers.Default]

Any help or advice would be greatly appreciated.

Thanks!