when i use the fill tool- it will work for a bit but after using the fill tool 15-20 times on a drawing (the amount of times i can use it is randomly, so i guessed), the fill stops appearing. then if you hit the undo tool it appears but something else disappears. and then if you click the save to website nothing happens so you cant save your drawing. cant even save it to your computer. i learned of this glitch when i tried to make a 'whorl' drawing and i couldnt because of this
a solution would be appreciated.