In Firefox 69.0.2 on Ubuntu 18.04 when I click in the main window of my NC17 in the menu bar on the Notes icon my last note appears. In the left top corner is the three bars button. When I click this button my last note is moving to the right and on the left side appears a blank white space, but no “new note” button and not a list of my previous notes. Is this a bug, or am I doing something wrong?