Smudge Tool Not Working

[Anonymous]

My smudge tool keeps erasing the colors I'm trying to smudge instead of smudging them. It works sometimes but then it stops a little afterwards. This happens when I stop smudging and change the color to draw a bit, but even when I take the color off it starts erasing again. I don't know how to stop the smudge tool from erasing or smudging with a color instead of smudging colors into one another.

Any help with this would be appreciated, the "how to" instructions on the actual website are in polite terms, wholly unhelpful.

[david.lau]

Undo will is linear.  You can't just undo strokes, it will also undo commands.

To hopeful help, on desktop, it's best to use the Save As command.  It will version a file for you automatically by adding a (number) 1,2,3,4 etc to the end of the file.

[Anonymous]

I'm sorry, I should have specified. I'm using the mobile app. And I'm not undoing anything, I paint the colors then I switch to the smudge tool and it begins erasing when I try to smudge. Or it smudges a color on top of everything no matter what I draw on.

[david.lau]

1. Are you on iOS or Android?

2. Can you try to reset SketchBook?  {=] > Preferences > Factory Defaults (Reset all 4 sections) and ry the smudge tool again?