Hello!! Im having a bit of trouble with getting the achievements.... I swear ive already gotten some of them and even seen them pop up in game just not in steam and when I go back to check they arent even in my inventory anymore either...
Certain types of achievements (the ones where you need to do multiple events) will have the Steam achievement pop-up to show you've made progress on that achievement, even if it hasn't been granted yet. I'm not entirely sure how to stop Steam from showing the "progress" version of the achievement pop-up, but I suspect that may be the source of the confusion here.