It may be caused by bad network, so it is recommended to try again later.

The server is busy.

Synchronization is not set. The specific operation is as follows: enter your own space, then click on your profile, then click Modify, then click Synchronization Settings in the space settings, and then click Synchronization QQ Signature.

To modify a personalized signature, follow these steps:

Log in to your qq and click on the location as shown in the figure;

Modify the personalized signature content, and click the space to take effect after the modification is completed.

Note that the personalized signature cannot be too long, otherwise the display will be incomplete.