I just installed and started the trial version of Rhino 8 (I’ve never used Rhino before). I clicked into the Top view, selected ‘Circle: Center, Radius’ tool, typed 0 to put it in the middle and 16 for 16mm radius. I see the circle on my screen in every view point, but when I hit enter it goes away.
I have tried all the different drawing tools and they all do the same thing. Shows me the points and the lines it will make, but when I complete it they just vanish.
I have not changed any settings and I’m not even sure what to look for to change. I tried googling, but what I found was some suggestions to confirm some things in my Display Mode which are all the default values and what was reocmmended.