I will attach a zip file containing 3 documents, the original one, the LibO export done with Version: 22.214.171.124.alpha1+
Build ID: 808d273db098e2269e53813595a6bfc7b160e28e
TinderBox: Win-x86@39, Branch:master, Time: 2014-04-25_02:09:26 snd the export result of Visio 2013
As you can see the picture is black. (It is a picture of the content right above)
Created attachment 97941 [details]
Test suit - Licenced CC-BY 4.0
Created attachment 97957 [details]
image exported by libvisio
This is a libreoffice bug: gthump can display the exported image just fine.
On pc Debian x86-64 with master sources updated today, I can reproduce this.
I noticed this log repeated 7 times:
warn:legacy.osl:6461:1:svx/source/sdr/contact/viewcontactofsdrpathobj.cxx:67: PolyPolygon object without geometry detected, this should not be created (!)
*** This bug has been marked as a duplicate of bug 73523 ***