Twitter, one of the last refuges for uncensored, explicit content in the realm of social media, appears to be blocking certain sexually explicit search results for certain keywords.

Searches for words like “porn,” “boobs,” “pussy,” f*cking,” and more currently yield no “Top” results.

If you select “All” results, however, you’ll see plenty.

There is also a peculiar lack of photo and video results for these sexually-themed searches:

Hm. That doesn’t seem possible.

Not likely.

Of course, this immediately raised concern on the site. Not only would this be very bad news for the adult industry, who promotes its content heavily on Twitter, but there’s also this angle:

FYI: @twitter now returns no "Top" results for ALL searches w/ the word porn: No news tweets, no health, academic, literary or legal tweets.

— Violet Blue ® (@violetblue) March 15, 2015

But it looks like you shouldn’t worry just yet. Twitter is saying this is all a mistake.

“We recently made some changes to improve the algorithm that fetches the most relevant content for Top Tweets in search results.” a Twitter spokesperson told BuzzFeed. “A bug was discovered that caused us to aggressively filter some content from Top Tweets inadvertently. We’re working to correct the issue.”

So, if that’s true, we should expect to see boobs all over the “Top” results soon. As of the writing of this article, however, there is still a shocking lack of “top” and multimedia results for many adult-themed searches.