Object disappear when I use curve editor

Hi Guys
I have a lot of issues whit object disappearing when I’m using the curve editor. Same issue in Rhino 5 and 6. Any idea?

If you get this already with a simple model that contains only a box could you please attach a file that shows the problem for you?

Thank you,


I also have problems with objects disappearing when I stay at one tick on the timeline and I zoom in/out geometries (the problem seems not to interest the first one tick of the timeline)… DO YOU HAVE AN IDEA? Ps. I can share a .3dm Thanks! Gianluca

Can you please share the model with us so that we can have a look at what’s going on?
You can send it directly to: marika.almgren@mcneel.com if you don’t want to post it here.