I have created 5 graphs and tables that are uploaded to an Email thanks to this Question Pasting an Excel range into an email as a picture
Unfortunately, my first graph has a change in the date's format when pasted in Excel already, whereas the second one (and all others) still look exactly similar to what I created. 
What other way are there to copy paste graphs or what should I look at to make sure this doesn t happen?.
First Graph with date as number

Sheets(2).ChartObjects(1).Chart.CopyPicture
    Dim p2 As Picture
    Set p2 = ActiveSheet.Pictures.Paste
'here date format changed
    Sheets(3).ChartObjects(1).Chart.CopyPicture
    Dim p3 As Picture
    Set p3 = ActiveSheet.Pictures.Paste
'here no change
 
    