Greetings everyone. I'm having an issue with my Brush Stroke Preview in Photoshop. If anyone could tell me how to fix this, I'd very much appreciate it. So the problem is that I'm no longer able to see a nice, wide preview of the brush when I'm creating it (like in Picture A). Instead, what I'm seeing now is just a mere thumbnail (Picture B). I tried clicking / dragging it, and so on, but nothing seems to make that preview budge from that size. Any ideas?
Picture A (what I'm trying to get)
Picture B (what I currently get)