When adding multiple attachment points to a note ... the system is limited to the physical height (resolution) of the screen. It is possible to add attachment points to the extent that the 'done' link no longer appears on the screen.
A work around is obviously that the user deletes one of the attachment points, or maybe, if they have not already done so, change the display's font size for that panel.
Ideally, there should be the option that a note attached to a reference (not selection) should/could also be visible on all resources of type:bible. This may be an option for the individual highlight style 'Appear on all bible references' ... therefore removing the need to select and attach for each bible.
