Incredibly frustrating "update." Keynote 6.6 won't open documents that worked on the most recent version (it displays the super-helpful error message that the document "can't be opened for some reason"). When I export 1080p slides as images, they come out as JPEG instead of JPG, and they're 1024x768 with white letterboxing. When I export slides to a PDF, some of the text boxes are inexplicably left out of the export. I'm at the end of my rope here. This is really screwing up my workflow. Is this just me? Is anyone else having the same problems? Does anyone know how to fix it or when Apple may release a fix for their "update"?