Eraser tool is square, not a circle

[1rungepaul]

Hi I can't get the eraser tool to the shape of a circle. For years it always was in the shape of a circle, Now when I go to use it there is the shape of a square. It still erases but the circle is easier to use.

[Trevor.Dennis]

You can chose to use any brush preset with the eraser, the same as with the brush tool.  Right click on the canvas to open the brush selection panel, and chose the preset you want.

[Ronald Keller · Accepted solution]

You have set it to Block instead of Brush in the Options bar.

[Bobasneh]

In Adobe Animate CC, to get the square eraser back to a circle, select the eraser tool and keep pressing the '[' key