PowerMockito chaining doesn't work reliably for Spied class - mockito

Question

I've a test where the System Under Test calls a static method. The static method belongs to a final class(it is a utility class).
The test code is as follows:
#Test
public void test() throws Exception {
SUT sut = PowerMockito.spy(new SUT());
PowerMockito.spy(A.class);
stub(method(A.class, "methodOne")).toReturn("CONST_STRING");
PowerMockito.when(A.methodTwo(anyLong(), anyLong()))
.thenReturn(false, true, false); //The problem!
sut.method("arg1");
assertThat(//some assert);
}
I get intermittent errors on the below line. It passes sometimes & sometimes, it fails.
PowerMockito.when(A.methodTwo(anyLong(), anyLong()))
.thenReturn(false, true, false);
When it fails, below is the error that it displays:
[junit] Misplaced argument matcher detected here:
[junit]
[junit] -> at com.project.SUTTest.test(SUTTest.java:40)
[junit] -> at com.project.SUTTest.test(SUTTest.java:40)
[junit]
[junit] You cannot use argument matchers outside of verification or stubbing.
[junit] Examples of correct usage of argument matchers:
[junit] when(mock.get(anyInt())).thenReturn(null);
[junit] doThrow(new RuntimeException()).when(mock).someVoidMethod(anyObject());
[junit] verify(mock).someMethod(contains("foo"))
[junit]
[junit] Also, this error might show up because you use argument matchers with methods that cannot be mocked.
[junit] Following methods *cannot* be stubbed/verified: final/private/equals()/hashCode().
[junit] Mocking methods declared on non-public parent classes is not supported.
[junit]
[junit] org.mockito.exceptions.misusing.InvalidUseOfMatchersException:
[junit] Misplaced argument matcher detected here:
[junit]
[junit] -> at com.project.SUTTest.test(SUTTest.java:40)
[junit] -> at com.project.SUTTest.test(SUTTest.java:40)
[junit]
[junit] You cannot use argument matchers outside of verification or stubbing.
[junit] Examples of correct usage of argument matchers:
[junit] when(mock.get(anyInt())).thenReturn(null);
[junit] doThrow(new RuntimeException()).when(mock).someVoidMethod(anyObject());
[junit] verify(mock).someMethod(contains("foo"))
[junit]
[junit] Also, this error might show up because you use argument matchers with methods that cannot be mocked.
[junit] Following methods *cannot* be stubbed/verified: final/private/equals()/hashCode().
[junit] Mocking methods declared on non-public parent classes is not supported.
My version of PowerMockito - 1.6.3
What is happening? Why is the failure intermittent? What is causing this unreliable behaviour?
PowerMockito chaining doesn't work reliably for Spied class