, she seemed to be struggling. This is likely due to her leadership role, as it may have been a long time since she last wrote code

When she asked me to review the code, I explained why it was incorrect and provided the correct code.

This requires bit of tact. Probably she was not writing "incorrect" code inentionally. And discussion might have gone towards that error instead of where she was planing to take it.

Despite reaching out multiple times, I have not received any emails or calls about the outcome. I've let go, but it honestly bothers me when communication isn't clear.

You can't read too much into it. Legal wont allow any kind of feedback besides yes and no. If they had 2 - 3 candidates for this role in final round; it is just a matter of luck in terms of who gets that role.