PPTX attachment 165752 [details] doesn't open good in LO 7.1+, seen in screenshot comparison MSO-LO attachment 165753 [details].
Interesting that images are full white in image viewer. I guess it's EMF. Original bug 119662.
Build ID: a9976a958b2857e308c6598532151878615bfd9f
CPU threads: 4; OS: Linux 5.7; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US
*** This bug has been marked as a duplicate of bug 137413 ***