That's funny. I just encountered this the other day. I had a hatch that completely lacked the "area" entry in the properties, and in the LIST output.
Completely dumbfounded as to why this could occur, and how, I just chose to "recreate boundary" and used the area from the generated, closed, polyline. I chalked it up to being a "magic hatch" or as I thought of it "stupid autocad $&*#*% pain in the #$*$ random $%***#&" and so forth...
If I can find the drawing, would it be of any use to y'all's curiosity?
