Hi Steve, it’s still happening. Actually it’s not a bbox display… it happens in shaded views and they switches to wireframe while zooming / rotating. The Dynamic redraw “Frames per second” setting makes no difference. I don’t see any changes in the behavior. I tried 0.01, 0, 10, 25… no difference.
When I start Rhino and open a model I can work normal for some time… like 10 min maybe. Then suddenly it starts switching to wireframe. And from that moment on it stays like that. Then it’ll always switch with the slightest movement.
The size of the model does matter somehow. With smaller models it takes longer till the switch kicks in. It has to do with the model, not with the Rhino instance. Means, if I open a big model it’ll switch quickly to wireframe. If I open then another model in the same Rhino instance it’s back to normal till it starts again.
Interesting… if I have assigned a shaded display mode to some objects this objects will never change to wireframe.
I hope I could make it a bit clear what I am experiencing