You need to always update the lists with the information from the model, as you make modifications.
Access the command
In the Labels & Dimensions tab 
Management panel, click
(Update lists).
Command line: _AstM4CommDetUpdateBOM
Update a list
- Select a previously created frame.
- In the Labels & Dimensions tab Management panel, click
(Update lists).
- The list is automatically updated with the information from the model.