Graphic problems // exploded geometry

[Aleksandra.Ziniewicz]

Hi,

Everything worked fine for months, but then it suddenly happened ... Revit explodes the geometry and creates millions of lines in the 3D view that returned to normal when zoomed out. Could you please tell me what is happening? I'm using Revit 2020.2, I also checked the model in Revit 2016 version and from there it works normally... Thanks in advance.

[ToanDN]

If you delete the 3D view and create new one, does the view look normal?

Did you link in any DWG that has the a very large extent (beyond 10 miles from the origin)?  Turn off CAD links/imports and see.