Two Printers only one Can be active?

I’m able to slice and send a file to an active printer but when I select a second printer and another file for printing all I get is the following screenshot…what does it mean?

It appears that you only have one printer connected at that moment and it’s printing something else.

I’m getting a similar issue, because of flashing a new Octoprint SD card to use in the same PI. I had to set it up as an all new Octopi unit, so Astroprint thinks I have 2 printers connected now. Is there a way to delete a printer from Astroprint? I haven’t been able to find an editable list of my connected printers anywhere yet.