Issue Description
There are a variety of reasons things might be hidden in a view, including...
- Document > Layers > (Layer Combination)
- Document > Renovation > (Renovation Filter) - Items might be set to be hidden on certain renovation filters. (There is an option to diaply an element on only one given Renovation Filter: Show an Element in a Single Renovation Filter Only
- Document > Partial Structure Display
- Design > Story Settings - (Story has zero height; stories should not have zero height in most cases.)
- Object Settings > Floor Plan and Section panel > Floor Plan Display > Show on Stories setting
- View > Elements in 3D View > Filter and Cut Elements in 3D
- The element is being acted on by a Solid Element Operation
GRAPHICS ISSUES CAUSED BY MODEL FAR FROM ORIGIN
The graphics in the 3D window can degrade if either the entire model is very far from the origin OR there is a random object very far from the origin. Go to the 3D window, turn on all layers and Zoom > Fit to Window to see if there are any rogue objects far from the model. Far from Origin Troubleshooting Guide
If none of the above helps, please contact support to upload a PLA copy of the file to be investigated.