The key above the mirror others have mentioned, the Key I found from the bedroom chandelier that seamlessly doesn't go anywhere (Or just to something locked I never found), dropping items makes it vanish forever??? I put my teabag in my mug by the sink, thinking I'd fill the mug with water and the mug devoured my teabag then vanished from my inventory, leaving me with no mug. There's a Towel right to the right of the wardrobe??? I don't see that and if you walk in the corner of the room to the right of the wardrobe, you can get stuck in that corner forever.
I'll be uploading a video of my gameplay although even with these troubling bugs, I do want to at least iterate that I see great potential in this game, but it sorely needs playtesters and bug-crushers to iron out and make the game less of a headache.