That pissed off some IG users who flagged the video as offensive.
Instagram removed Haze's account, but now says it acted too soon. A rep tells us, "When reviewing reports from the Instagram community, we do not always get it right and we wrongly removed this account." They've since reactivated Chet's page ... including the video.
So, let's review ... the n-word is okay on IG (freedom of speech and all) -- but nipples, still a no-no. We're looking at you, Chelsea Handler.