Export to PowerPoint - doesnt look the same as it does in Powerbi Service

I have an issue when I try and export my report to powerpoint that reveals parts of tables which are hidden by overlapping tables in power BI desktop and service. see highlighted yellow sections in screen shot below.

the only way I seem to be able to rectify this is to increase the overlap in PBI desktop, so part of the visuals cant be seen, which works when exporting to powerpoint, but makes the Power BI version useless (see below)

I have tried resisizing, grouping, re build and reorder the hierachy of the tables, but nothing seems to work. 

Any possible causes or solution are welcomed, please