I just encountered this problem myself. I learned that it is related to SAS Problem Note 55675 available at: http://support.sas.com/kb/55/675.html In short, it has to do with the File Import node being connected to the Start Group node when it is being used for either bagging or boosting. To overcome this problem, I attached the File Import node to a Save Data node which was a terminal node. I used this to create a dataset in Data Sources. I then created an Input Data node, which was linked to the dataset in Data Sources rather than directly to the File Import node, and used it this node to begin the analysis.
... View more