3D objects dissappearing when using multiple viewports

[p0nyface]

Iv'e got a problem when i use more than one viewport on one page. For example if i have one viewport showing a 2D object and the other viewport showing a 3D object, to begin with i can see the 3D object and then i save the drawing and reopen it later and the 3D object dissappears. It is still there in the MODEL space but not in paper space, but if i run my mouse pointer over the empty viewport i am able to select the object and then i can see it, but as soon as i deselect it, it dissappears again. However when i print everything comes out, its only when im in paperspace i can't see it. I can even see it in the preview window in Windows explorer when i highlight the icon. Is it somethin with my computer, AutoCAD, or is just on of those things? the problem isnt isolated to one drawing either. I've attached a screenshot showing my problem. There is spose to be 3D objects in the 4 viewports down the right hand side of the page, i have highlighted the bottom one.

[ReMark]

You might try bumping up the value of the system variable MAXACTVP (max active viewport) and see what happens.

[p0nyface]

thanks, that seems to have fixed it

[ReMark]

A delayed response is better than no response at all.

 

Glad to hear the problem has been solved. Thank you for updating us and you're entirely welcomed.