For some reason my fill in stroke have stopped working. I've searched the Internet and have tried everything that people suggest. Nothing seems to work. Not sure what I did to cause this problem, but I need help solving it.https://youtu.be/q2jy0uyhbOw

I'd check the menu: View>Display Mode>  Set to Normal for full display of Fill/Stroke.

Thanks Tyler that fixed the problem. I knew it had to be something simple, but for the life of me, I couldn't figure it out. You're the best.!