Hi there,
I've been using PDF import to get stamps printed by the German postal service and include them into my custom labels for a while now. Always worked perfectly. Recently I upgraded to Ubuntu Mate Cosmic (Inkscape Inkscape 0.92.3 (2405546, 2018-03-11)) and suddenly I noticed that there are some bugs with it.
First, when I choose "internal import" when opening the PDF in question, some text (not all interestingly) is messed up and replaced by black diamonds with a while "?" in its center (similar to the character that shows up when there's unknown Unicode characters).
When I instead choose the "poppler import" the imported data looks perfect first. However, when I then copy and paste the image into a freshly created Inkscape document, the text becomes very small and messed up.
I've a package which includes the original PDF with which I can reliably reproduce the behavior on my system as well as screenshot of how it's supposed to look (looks perfectly in evince), and what the two failure modes look like in inkscape. It's available here: http://s000.tinyupload.com/index.php?file_id=23794298134224596755 -- I've never used that hosting service so in case it's junk and you cannot access it, please let me know.
If anyone could have an idea on what might cause this, I'd be super interested to know.
Thanks a bunch, All the best, Joe