I'm not sure if this is the correct place to ask this, so maybe some can point me in the right direction if it isn't.
I have exported an chart from the R programming language as a PDF, and it needs some manual edits before it can be included in a publication.
If I open the PDF in acrobat it looks fine. But if I open it in illustrator, there are parts missing:
The missing part is a filled path. If I open the file, and then save it without making any changes, the missing information is now missing in Acrobat also.
If anyone has any ideas what might be happening, or how it might be fixed, I'd be very grateful.