Created attachment 159793 [details]
Sample PPTX document
Exporting this sample slide from Office 365 LibreOffice is able to open and
view it just fine.
Only the text in the four arrow elements is horizontally shifted too far to
Created attachment 159794 [details]
This is how it looks in Office 365
Created attachment 159795 [details]
This is how it looks in LO - text elements partly invisible (and farther to the left)
Confirmed in LO 188.8.131.52.alpha0+ (f924658e45f256544e43c3fdb2af9b585d0f0933) & 184.108.40.206 / Ubuntu. In 3.3.0 none of the objects are shown.