Export bug: part of PDFs illustration gets a moving background

[Robert27727427vx46]

So I exported a PDF from a Figma original. Parts of an illustration comes out with a moving background that seems to relate to the zoom level of the screen (sic!). 

Video here: https://vimeo.com/1003090148?share=copy 

Anyone have any clue on this? I do not think it would be possible with free floating objects in the PDF-format?

[Robert27727427vx46]

It seems the problem relates to opening the file through Microsoft Teams. Since when I opened the file after exporting it, this did not occur, and when I downloaded the file from Teams where it was shared and opened an instance on my desk it also didn't occur.

[Robert27727427vx46 · Accepted solution]

So I flattened the illustration in Figma before exporting and now also Teams can show the file correctly. I still do not understand why this happens. But this solved the immidiate problem.