Not sure what I did but ME and DN both come up but they’re entirely blank.
The only thing I am aware that might have been unexpected behavior on my part is I moved them to a third monitor on a three monitor set up. This is Linux if that helps. I closed the program (for other reasons) and now whenever the program launches, both these panels appear but they’re invariably blank- meaning no content whatsoever just blank gray spaces.
HTH !
Edit- was able to get them to show properly by going to View–>Panes–> selecting them. Now they’re back !