One of my colleagues came to me today with this conundrum; the wipeout in modelspace was hiding paperspace objects. This was happening both on the screen and when plotting.
Here you can see that the orange circle is hidden behind the blues lines. The blue lines are in model space and are the frames of the wipeout and the orange circle is in paper space.
When plotting the circle stays behind the blue lines.
The solution to plotting side of things is to ensure Paperspace is plotted last.
When plotting you can find this option on the right hand side. Check the plot paperspace last box.
Now the plot will show the circle in paperspace above the wipeout in modelspace.
One one drawing I found that if you turn off wipeout frames and back on again the display is corrected, however on another this does not work. In order to turn off wipeout frames type WIPEOUT –> then F –> then OFF and then turn them back on again (WIPEOUT –> F –> ON).