How does the the glory of the king team open the black card?
First of all, this is a BUG in the new version update, and the official failed to find and fix it in time. The fix announcement of the second day of the July 10 version update did not include the problem that the black card could not be used. So we need to feedback this BUG through the BUG submission function.
There are two entrances to BUG feedback in the game, the first is the bottom bar of the basic setting interface, and the second is the lower left corner of the game settlement interface. After entering the BUG feedback function, click on the game you own to open a black card and lose the game, but there is no game to protect the star. You can submit it after a brief summary.