Hello everyone,
So I thought it was a good time to go back and finish this old Anvil tutorial series. But the mask that I had used to texture paint was gone! I set up to redo it (good exercise) but for no reason that I can see, when I paint on my anvil, it paints everywhere but on the required spot!
I would love to understand this problem in order to avoid it in the future. Any help is, as usual, hugely appreciated!
Thanks! 
The following screenshot is me trying to paint the top 
