The sides to my model are not being displayed. Any guesses why?

[pavol]

This could be an ordered list issue, see following posts for more details:

Display bug 2

Make sure you use data trees instead of flat lists too keep your model organised. Order of lists can vary between computers or Grasshopper versions due to tolerances and other factors and this may have affected the transformations in your model. You can learn more about optimisation process in this article and the webinar below covers details of working with transformations. More resources can be found on our blog or video channel.

Hole in model becomes solid in Shapediver

Things can go wrong if you use Deconstruct Brep and similar components as the resulting element list order may vary between computers as explained in this blog post or tutorial below: This video can also give you some ideas how to build your model in more reliable and efficient way:

The best practices of data management are covered in these video tutorials:

Optimizing Rhino Grasshopper Definitions | Pt. 3: Send Data To Online Apps!

Rhino Grasshopper Pro Tip: Avoid Simplifying Data Trees!

How I Keep My Rhino Grasshopper Definitions Organized | 4 Productivity Tips!