Known Issue
If you have upgraded from Discovery 5 to Brainspace 6 and are running version 6.0.6 or earlier, you will need to apply the following workaround to enable incremental builds on any datasets imported from Discovery 5.
Reconfigure Data Source

- Walk through the steps to reconfigure the Data Source (Proceed, then license check, Field Mapping screen, Click Continue), no need to change anything; simply click Save. 
- Obtain Build Directory information by clicking on the information button in the lower left corner of the dataset configuration window.  
- On the Application Server, as the 'brains' user on type (sample below). - vi /data/brainspace/builds/YOUR BUILD NAME HERE(i.e. 9fc91c69-2ee9-4730-bb7b-422e92149984)/config/output.config 
 
- Add IncrementData=yes to the last line. Save and exit (Esc Key, :wq). 
- Then execute option 2 build.