QQ space talks about why it can’t be pinned to the top

After entering the space, click the gear in the upper right corner, which is the space settings, and then there is basic information. Click on it and you will see a preview, then there will be a space dynamic, and then you can see the It said that there is a pin option below

1. Log in to QQ on a computer, click on the five-star symbol to enter QQ space.

2. Click "Talk", enter your "My Talk", enter the content in the box, and click "Publish".

3. After publishing, click "Pin" on the lower right.

4. After selecting the pin, a "pin" sign will appear on the upper right side of the post. If you want to cancel the pin display of the post, click "Cancel Pin" on the bottom right of the post.