After several days of issues, publisher Activision has finally discovered what is causing the most recent problem with Call of Duty: Advanced Warfare.

On Thursday, Activision and developer Sledgehammer Games released the new AE4 Widowmaker laser gun for anyone who owns the Advanced Warfare season pass. But many quickly found that they could not access the new content despite spending the $50 on the pass. Through the weekend, players continued to have issues, and Activision remained silent on the AE4 problems except for mentioning that it was still investigating the cause Friday. Today, that changed — although the company still hasn’t released a fix.

“We have identified the issue affecting early access to the AE4 Widowmaker for players with Digital Pro Editions of Call of Duty: Advanced Warfare,” reads a post on Activision’s support page from today. “We are working to resolve this as quickly as possible, and should have a fix in place sometime this week.”

The AE4 is also a part of Advanced Warfare’s upcoming Havoc DLC for anyone who doesn’t own the season pass, but those people will have to wait. Havoc isn’t due out until some point in the future.

While the AE4 is a sore spot for Sledgehammer Games, Advanced Warfare has avoided many of the other connectivity and performance issues that have troubled other games that debuted this fall. Sony had to disable a number of features to get its racing game Driveclub to work online. Ubisoft has released a number of patches to fix Assassin’s Creed: Unity’s low framerate and bugs. Microsoft has only just recently got Halo: The Master Chief Collection’s online multiplayer into a functioning state after several updates.

That doesn’t mean Call of Duty avoided every issue. During its launch, people were reporting issues downloading and installing the game, but those problems cleared up after the first few days.