Uses all my ram when I turn on "Tiled in Both Axes"

Whenever I turn on “Tiled in Both Axes” Aseprite uses up to 99% of my memory and so I can’t move my mouse around or anything. I have to restart my computer to fix it. This is with a canvas size of 64x64.

Hi there. What version of Aseprite and the OS you have? Could you share a screenshot of the Aseprite editor (full screen)?