While within Acrobat, can't open files.
Type command-O to navigate to a PDF file.
Box opens to display files, but application crashes the second I start to navigate, for instance, go up a directory. This just started happening.
Using Mac OS 10.12 (Sierra) and Creative Cloud Acrobat DC.

Note: I CAN open PDF files from the finder. Will launch Acrobat if it isn't running already. Just not when I'm in the application.