PDF export prints all fonts in black
Exporting slides to PDF looks great in every respect but one. All text is changed to font color black.
This wasn't happening about a month ago when I last exported Keynote to PDF. Since then both the OS and Keynote have been updated to the latest versions from their previous versions. Now:
Keynote 6.5.3
Mac OS Yosemite 10.10.3
MacBook Air, OS X Yosemite (10.10)