When I make a topic one of my favourites and someone posts, a 'new' icon appears in the My Home section.
I click on the favourite with the new post. I reply to it and after viewing it return to my home. There will still be a 'new' icon beside the favourite link I just viewed and replied to.
Im assuming its a 'new' icon for my reply. I have to click on it again and return to my home to clear it. I dont know whether this is what you meant by bugs and issues or not... Its simply a little tedious.