Looker Export issues - last total value not showing up!

Hi,

I am facing a strange issue with looker look on my dashboard. I have bar chart and a monthly line chart on top of the bars. I see the total of the last displayed month on the look and dashboard but it does not show up on the .png export! I have tried this several times yesterday and today and I am facing the same issue!

Can anyone tell me why or tell me a work around?