Blog garden ranking

This problem may be caused by an error in ranking statistics, but I don't know what the problem is. Please tell Dudu the cause:
Some time ago, some friends wrote a question about how to calculate the ranking of the blog garden. Today, I found the ranking of the blog garden.
There are some problems: the following graphic analysis:

First, go in from the homepage, click to view more, and find your blog ranking:

This is my blog ranking

The ranking shown here is 812, but the result we see in the blog is as follows:

However, we found a problem here, that is to say, we can see two different rankings here;

Now let's take a look at the ranking of the old bag.

The following results are displayed at the beginning:

What I saw in my blog is the following result:

What problems does this data mean?
I am not sure about the current bug? Please check your ranking. I hope Dudu can explain this question: