Details
After creating a drawing of an assembly and adding a Parts List,
the Parts List only shows 1 component out of 22.
Solution
The "Callout" for each component was set to "1".
This causes the behavior in the Parts List, where only 1 row is displayed with the total amount of the components.
When selecting the "PC NO" (Callout) column of the Parts List --> Settings and checking the "Key Field" toggle, all components get a different Callout number and all the components now are properly listed in the Parts List.
Hardware/Software Configuration
Platform: INTL64
OS: windows
OS Version: 764sp1
Product: NX
Application: DRAFTING
Version: V10.0
Function: TABLES
Ref: 002-8014986