Dave fixed it for you. He thinks you were clicking and releasing instead of dragging the tag, making very tiny ones, I couldn't even find them at first but there were 4 itty bitty squares on Nymph where you had tried it several times.
He has updated the code to not allow 1x1 tags. They must be 5x5 at a minimum and if you try to create a tiny tag like that, it'll throw an error and give you some tips to help you out.