You can, however, create a (by default unassigned) keyboard shortcut for some of these functions. Edit -> Keyboard Shortcuts. Enter "Export" in the search box, and look under Text Panel: Export Transcript, Export to CSV,and Export to Text Filer. There are others, e.g., Import Corrected Transcript.
This is one of those massively disruptive bugs that happen from time to time in the Beta version. They are usually fixed very quickly.