Since the update yesterday, the battle.net app is just showing up as a black screen.
A common cause of that is antivirus software triggering as if the Bnet app is an advertisement.
Found that turning off the “Use browser hardware acceleration” in the App Settings got rid of the black screen.
im having the issue where when i click MW2 to play it loads it up then instantly goes to a black screen and crashes
The topic you are replying to is 2 years old; worse, the problem is entirely different.
This forum is to provide technical support for issues on the Battle.Net Desktop App; issues with specific games need to be reported in that game’s forum.
For the issue you describe… you will need to contact Activision Support; see this post pinned at the top of this forum: Having Problems with Call of Duty? Read this first!