My company sent me copies of our logo as PDF files created in Adobe Illustrator.
The version with white text on a black background displays in Acrobat Reader DC (and Microsoft Edge) as an all white page. It displays properly in the current Firefox's native PDF reader and in Windows 10 Mail.. The thumbnail in Windows Explorer is also all white. The other PDF versions of this logo (color, b&w) display accurately.
This problem exists even on a new, unmodified installation of Reader DC on a current Windows 10 system.