Box not allowing download from within a Word for Web docx

When I open a docx in Word for Web from Box and then try File, Create a Copy, the Download option is greyed out. Tried a number of files (both where I’m the owner and not) using Edge & Chrome. We've lost edits from a collaborator a couple of times (maybe user error), so I'd like them to be able to save a local copy from within the web app as a backup before they exit.