New Animation Set pop-up

Everytime I hit the “new” option under “file” it comes up with the normal pop-up asking if I want to save and I select yes or not, it doesnt matter, but either way it comes up with another pop-up right after thats called “New animation set” and asking if I want to save and the only possible selection is yes if I want to open a new drawing sheet. If I select no or cancel it just keeps the first drawing sheet open and nothing else happens. How do I get rid of this pop-up?