Thanks for this awesome site! Dropping this here to start my own investigation and I figure someone else may beat me to the fix, which is fine.

Reproduction

• Open the site (in my case, in Chrome)
• Click and drag to create a div
• Click "Reset Grid" button
• Attempt to drag over another region to start again

Expected behavior: Drawing still works
Actual behavior: Don't seem to be able to click & drag anywhere anymore

Note: the behavior also happens if I click the x on the div prior to resetting the grid. Anytime the button is clicked, it appears the click/drag functionality stops working as well.

No errors in the console or anything that points to an obvious culprit (for me at least).

Screen Capture