I did some quick research and i have a theorie.
In older version of polyscope you needed to set the points one by one like a waypoint.
But in my version it has an automated process via a setup window.
This change might have removed the points from the installation but left the expand button.
or removed the points without anyone noticing & breaking the expand button.
tried older version from polyscope and when i loaded 3.3 it worked. seems like they added a feature but broke another one in the progress. ill send a bug report.
If you want to get the points like this you need to install polyscope 3.3 in the simulator and eddit the install file.
!!BE AWARE!! some stuff doesnt comply with polyscope 3.3 so it will be deleted.
You’re right that it does seem like a bug.
But it could also be intended and they just forgot to remove the “key” for minimizing and maximizing. You’re able to find the three waypoints again by going to “Teach this plane”. In there you can access your previously created waypoints, move to them and change them.
EDIT: You cannot however access the three waypoints from your sequence, so that’s a limitaton.