Assembly not showing in sections - SOLVED

Causes:

Corridor is not being sampled.

Solution:

1.     In Prospector tab, expand Alignments  
2.     Select the alignment you wanted to use (i.e. Alignment – 1) 
3.     Under there expand Sample Line Groups and right-click on SL Collection and choose Properties 
4.     In Sections tab, click on Sample More Sources button 
5.     On the Available Sources click on all items you would like to show and then Add to sample them 
6.     When done Click OK and then close all dialogs 
7.     Your other objects will now show up in section views.