Report doesnt show the same timeperiod as in Dash Board

[stelllemark]

I have created an "Line and stack column chart" to show number of picked lines and an average of the no. of lined in an order.
It is created in the desktop and looks good.

Then i publize it to the service as ar areport it will only show a smaller timeframe 

If i "pin it" to an Dashboard it will show the sam (correct) timeperiod as in the Desktop.
(please se scrrenshots)

I have tried to change filtering and design but are not able to find why it happen

Report Timeperiod

Dashboard Timeperiod

Desktop Period

So Any ideas??

Desktop timeperiod