Donald Trump pledged Sunday to delay enforcement of a national security law that threatened to ban TikTok, but it’s not clear that the app’s Chinese parent company has satisfied the requirements necessary to extend the deadline to find a possible buyer and avoid a permanent shutdown.

As a result, TikTok reappeared for users on Sunday afternoon with a message thanking Trump for his intervention. “Thanks to President Trump’s efforts, TikTok is back in the US!” the message read.

Some users saw the social media app come back online on Sunday, following a shutdown when a federal law went into effect requiring a sale or ban.