There are three possibilities for this to happen:

1. Tencent is upgrading Mocha these two days, which may happen to some users.

2. Your network speed is slow, which affects the use of the game.

You opened someone else's card box.

It is estimated that the possibility of the third situation is very small, while the possibility of the first situation is very high, just wait for the game update to be completed.

Hello,

The card drawing method is very simple.

As shown in the figure: