Toon Boom: How to fix inconsistent line width when using normal/default pencil/brush
I was having this problem in Toon Boom Harmony, where my lines were shorter on the sides and thicker on the top. I had pen pressure off, and used the default brush. So I couldn't figure out what could possibly be causing this. It turns out I was drawing on a frame that had interpolation between two keys. I hope this helps!
My Animation Channel: / theapoke