I am aware of this issue, I just can’t for the life of me see what the issue is. It’s not an issue with Arctic itself, but rather the notification server. I will look into this for the next update. I’ve been so busy with Arctic lately, I haven’t had much time to work on the server. I have some other updates I need to make on the server so I’ll see if I can’t find the root of this issue while I am at it.
The badge will correct itself, but it takes a few minutes for it to update.