Crossplay within Call Of Duty: Black Ops Cold War has been temporarily disabled due to an in-game bug. Treyarch is investigating the "Zed 398 Swift Clover" error, as it started affecting PC players following the recent update across all platforms.

In a statement from the studio, Treyarch confirmed that they were aware of the error message and were actively investigating the issue with Beenox. “To keep lobbies healthy and full, crossplay has been temporarily disabled on PC while a fix is investigated.” they added.

Neither studio has yet to establish the cause of the error message, but it means players have been unable to access multiplayer matches, being kicked out the moment they do join, or finding themselves spawned into maps that they did not select. 

A slew of disgruntled fans has since taken to the Black Ops Cold War subreddit following the error message. Many were particularly irritated by the lack of information available on when crossplay will return to PC players, as Treyarch's response was brief. 

"an error occurred zed 398 swift clover" from blackopscoldwar

The content drop for season one was recently described as “the largest free content drop in Black Ops history”, and would include a “comprehensive integration of Operators, weapons, player progression, and Battle Pass rewards across Black Ops Cold War and Warzone.” 

The latest update out today, as outlined in a post from Treyarch, includes Prestige and 1000 new season levels, weapons, maps, and modes.

Call Of Duty: Warzone now has more than 85 million active players, Activision recently said, due to a “shared ecosystem business model.” Byron Beede, the Exec VP and General Manager at Activision said: “The momentum over the last year across the Call of Duty ecosystem from free-to-play Warzone as well as post-launch support of Modern Warfare, and now to Black Ops Cold War has been incredible.”

Call Of Duty: Black Ops Cold War is out now and is available on PlayStation 4, PlayStation 5, Xbox One, Xbox Series X/S, and PC.