After working for a while on a file, some of the images (which are originally PDF files) disappeared and are shown as blank spaces, as if there was nothing there. I attach an example file where I copied one of the plots that disappeared. The original one is of course not blank. I did nothing, I imported a new PDF file and then suddenly a few of the plots I had suddenly became blank. I sent the file to a friend and she still saw it as blank, and if I try to export it the result is the same. Is there any way I can recover the previous plots? I had modified the PDFs inside AD so I would like to be able to recovered the modified versions. The AD version that I am using is Affinity Designer 2 2.3.1
Bug_example.afdesign