First, open the space settings (gear sign)-space access-access permission settings-click on some friends to be visible-check QQ friends to be visible (all friends are visible)-and save the settings.
Space Settings-Synchronization Settings -QQ Signature Synchronization (QQ Signature Synchronization to Space)-Save
I'm Ronan from the Q&A team. If you don't understand, you can ask if you are satisfied. Please adopt it. QQ space Q&A team will serve you wholeheartedly.