Some icons from PowerPoint are imported as white blocks
When I import PowerPoint slides some icons are imported as filled in white blocks. I see some users have had this same issue in the past and the workaround was to reinstall Storyline; Create a new PPT file and import from that; and/or Right-click the icon then Format Picture > Fill > No Fill.
Unfortunately none of these solutions is solving the issue. When right-clicked the icons and their constituent parts are not appearing as filled so can't be unfilled. I can copy and paste them individually from PPT but there are hundreds and the rest of the team here is also experiencing this problem with other presentations so we really need a solution rather than a workaround.
I attach a PPT file showing how the icons should appear and a Storyline file showing how they are appearing.
Any help with this would be gratefully received.