It looks like you're looking at different points in time. The top chart looks to be showing the Fiscal Year. Notice, the bottom map starts with January, while the top one starts with July.
Hope this helps!
Ok, let me explain from the beginning.
I want to show the data from July, so I change the fiscal starting month from January to July. before I change the fiscal starting month, the data is correct ( in pic two) the bubble chart and the line chart overlapped, which is what I want. However, after I changing the fiscal starting year, the line chart did not show the correct data. This is really strange and cannot be understand. (see pic one) The bubble chart shows the correct data, but the line chart did not. I want to know why and how to fix it. thanks.