I'm watching the video at https://www.youtube.com/watch?v=cljS0rL5-Ko . The video's author uses the paint brush tool with a fill and a stroke to draw the character.
Every time I try to draw with a brush that contains a fill, the fill gets removed as soon as I start painting and only the stroke is left.
Why does the fill get removed and how do I include the fill while drawing?
I'm using Adobe Illustrator CC on a mac.