Video of what’s happening: https://www.youtube.com/watch?v=n2yMnkFS_T4&feature=youtu.be
I’ve been using the stroke tool to shade my character, but whenever I undo a stroke to try and redraw it, the line I had just undone will flash onscreen as I am drawing the new one. Also, if I swap between show/hide strokes, the whole layer will flash white.
I tried tinkering with my display settings, but nothing seemed to work.
I’m using Toon Boom Studio 5.0 on a Windows 7 computer with a Wacom Intuos 5 tablet. It seems to only happen with the stroke tool - using the brush tool works just fine.