Hello! After updating Kotlin version from 1.5.31 to 1.6.10, i've faced with problem related reflection - erasing property returnType nullability info (KType::isMarkedNullable is always false) when using proguard (even with dontshrink and dontobfuscate). With
isMinifyEnabled = false
or with Kotlin of version
1.5.31 it is working as expected.