Bullet point styling

I'm wondering why in the edit mode of my blog posts, it shows bullet styles that change for each level but this isn't the case when I publish the post. For instance, when I insert a bulleted list, the first level is a closed dark circle. When I enter a sub-bullet, it shows as an open circle in the edit mode. However, when I preview the post or publish, the sub-bullet shows up as a closed dark circle as well.

Any help would be appreciated. Thank you.