mockito-scala verify method invocation

Question

I raised a fake issue on mockito-scala : https://github.com/mockito/mockito-scala/issues/191 But I am still stuck with my problem.

So basically, I have stubbed answers for one method. I am sure that the stubbed method is executed with the correct parameters (debug mode enter in it):

val mocked = mock[Service]
mocked.execute(*, *, *) answers {(f:Parameter, s:Parameter, t:Parameter) =>
   s match {
     case _:SecondParameter => // Debug mode enter here
       Right("Second")
     case o => Left(o)
   }
})

Then i verify with a very broad verification : mocked.method(*, *, *) wasCalled atLeastOnce but my test is failing:

Wanted but not invoked:
mocked.method(
    <any>,
    <any>,
    <any>
);
-> at **hidden**

However, there were exactly 4 interactions with this mock:
mocked.init();
-> at **hidden**

mocked.method(
    FirstParameter,
    SecondParameter,
    ThirdParameter
);
-> at **hidden**

mocked.method(
    FirstParameter,
    OtherParameter,
    ThirdParameter
);
-> at **hidden**

mocked.method(
    FirstParameter,
    YetAnotherParameter,
    ThirdParameter
);
-> at **hidden**

Edit 1: There is a class between the mock[Service] and the test subject. Can it be the cause of this issue ?

class ServiceProxy(service: Service) {
  def execute(p:Parameter) = Future {
    val state = service.init()
    service.execute(state, p, new ThirdParameter())
  }
}

class Subject(proxy:ServiceProxy) {
  def doSomething(s:String, n:Int) = {
    val parameter = createParameter(s, n)
    proxy.execute(parameter)
  }
}

// In my test case 
val mocked = mock[Service]
mocked.init() returns mock[State]
mocked.execute(*, *, *) answers // Same as above
val subject = new Subject(new ServiceProxy(mocked))

val response = subject.doSomething("A", 1)
Await.result(response, Duration.Inf)

mocked.method(*, *, *) wasCalled atLeastOnce