It's also correct (and accepted, though it may not have trickled down to the user-side grading yet, it can take a while). What's most natural depends on the context and the desired emphasis. The pronoun is generally used for emphasis ("I am the father"). The verb is most commonly placed at the end, but if you also want to emphasise "father" it's perfectly fine to put it there.
Please report audio issues with the button in the lesson, not in the sentence discussion.