Why are the expressions sent by WeChat friends always invisible?

Because the WeChat version is too low, the operation method is as follows:

1. First, open the phone and click on WeChat, as shown in the figure below.

2. Then on the main page of WeChat that opens, click Discover and click Friends Circle, as shown in the figure below.

3. Then in the open circle of friends, press and hold the photo button, and then click the expression button. It should be noted that if you can't see the expression after publishing, there is a problem here. Don't choose to use third-party emoticons, because compatibility issues are invisible.

4. Then click an expression and click Publish, as shown in the figure below.

5. The result is shown in the figure, so you can see the expression.