<a href="http://app.roll20.net/forum/post/56734/at-and-number-features-not-working-in-character-abilities-section" rel="nofollow">http://app.roll20.net/forum/post/56734/at-and-number-features-not-working-in-character-abilities-section</a> I would have just commented on the post, but for some reason it was closed. I have had the same thing happen to me (Using Google Chrome) What happens is if I try to delete an @ dropdown that was already inputed and change around the Ability Macro, the @ dropdowns afterwards no longer function at all and I find I have to save changes then come back into the sheet in order get the dropdown working again.