When on the home page, the left side column with "My Communities" doesn't scroll for me in order for me to see them all. (I'm in quite a few.) It does when I'm on my profile or a community page, so it appears it's a bug.
(Minor) Downvotes appear as upvotes in the notifications. (This might be by design?)
On a post, I replied [and agreed] to a comment that was critical of OP. I got notifications that the commenter and OP upvoted my reply, but when I check the post page the comment score is 1. Shouldn't it be 3? I'm guessing OP downvoted me (which is fine) but the notification says upvoted.