While using the new stances system to lean left or right, it's easy to lose track of whether you're still leaning or not, and first-person views have no indication that you're leaning unless you look down (which is a bit silly).
This means that if you get distracted (say, you engage an enemy) while leaning, it's easy to forget that you're leaning and play for a considerable amount of time while 'leaned over'. This becomes an issue in CQB; if you're leaned left, you might not notice that part of your body is exposed when you're moving up to a right-facing corner. Attached is a demonstration of this issue (from first-person view, you'd think you were safe; in reality, your leg is sticking out quite obviously).
This could be easily fixed with a simple on-screen indicator. {F16780} {F16781}