I'm trying to change my form theme to default but it's not saving

Hi! I used a Halloween template for my form this past week, and I'm trying to change it back to the default theme, except it won't save. It's getting a bit awkward for the people who use our form now that it's a couple days past Halloween. 

Your form is now using the default theme so I think you've figured this out already. Let us know if you need further help with that.