1) I used the map frequently, but didn't have a reference for what item I needed next or any clue for what room it might be in. I was able to navigate, just didn't feel like I had a direction to follow.
2) The biggest example I can use is the dive-bomb birds. If I hit them during their drop and then only manage to hit them again after they've returned to their flight path then I don't get the knockout because they've regened health. It makes an awkward combat loop with them and it's confusing at first because I don't see the yellow bar actively refilling.