Group doc file attachments not working

The add file button on a group doc does nothing. this appears to be a known problem with the docs functionality; see:
https://github.com/boonebgorges/buddypress-docs/issues/428
There’s no way to tell how long this might take to fix. As a consequence, for now files can be added to the media library and a link to them provided in a doc.
 
https://github.com/boonebgorges/buddypress-docs/issues/428