>Is it not possible to export a sheet with viewports?
Yes, it is possible; You can export a single VW Sheet with viewports if your current layer before the process of export is a Sheet layer. VW collects and exports all the info necessary to preserve the view in the Sheet layer & viewports. The idea to export from a sheet layer in general is to preserve the look so in some cases additional blocks for 2D and 3D info will be created, cropping of the viewports will be added etc.
If your current layer before export is a Design layer then only the design layers will be exported.
The result from both types of export is always different and it is up to the user to decide what/from where to export.
>and one viewport came in at a different scale
This sounds strange to me. If you think it is a bug you could e-mail the .mcd doc directly to me.
Nina Ivanova
Software Development
Nemetschek BG
nivanova@nemetschek.bg