
"We apologize for the delay and only want to make sure that any content that we offer is up to the standards that PC players expect. "This means that Batgirl: A Matter of Family DLC will not be available on July 14 for those who are currently playing the PC version of the game. "Our continued focus on getting the right PC fixes in place for the main game has had an impact on the development of all DLC content for the PC version of the game," said the community manager on the WB forums.

Rocksteady is still working on fixing the PC version of the game, which means extra content along with physical and digital sales of the PC version have been suspended in the interim. The Batgirl DLC releasing for Arkham Knight on Tuesday will not be released on PC.
