This setting actually set the way you select your object you want to pick. You have two object overlapping each other, you want to select the top object so you enter value 96. But somehow Intellicad place this object behind when sortents value is not 0. You can also bring this dissappearing objects ...

I have try plotting in paper space and it does not hang so far

You can try using this command : sortents
and key in 0 value