Why are some friends' comments missing from QQ?

This is because the comment permission of the space is limited, just reset the comment permission, and the favorite permission cannot be limited.

The specific operation steps are as follows:

1. Log in to your qq and click the qq space icon, as shown.

2. Place the mouse on the settings icon and click Permission Settings, as shown.

3. Then click the comment message under the permission setting to prevent harassment.

4. Select QQ friends on the right so that friends can comment on their conversations.