That is some inconsistent censorship right there. They clearly got their raws for thr chapters from different places.
I'm personally not a fan of censorship in general, if you don't want nipples showing just don't publish a manga where they draw nips. Crudely painting over it distracts from the image overall and lowers its value as art. Like, why not put a black bar over the nipple on The Birth of Venus? Because the nipple is part of the art and poorly smudging over it to defend some prudish pansy's delicate sensibilities would lower its value.
Don't get me wrong, being a prude is all well and good. Just, don't read manga like this where it's 10% plot and 90% PLOT. stick to manga like dragon ball, where all you get is a full view of kid Goku's dick and balls. A lot. Kid was not shy.