AutoCAD Civil 3D :: Create Sheets Generates Duplicate Point Groups

C3D2012. We have a master C3D template that includes a number of point filters (let say 20 of them) and a number of layouts (again, let say 20 of them) to accommodate our two sheet sizes. 

Here is the issue that I am running into, when the Plan Production tools use a layout to create plan and profile sheets from the same master template that is used to initially create the file, the whole process will duplicate each point group 150 times for every group (see attached).  So, what I ended up with is 20 point groups X 150.  In my example, I ended up with 3000 duplicate point groups.

The end result is a file that is somewhat unusable do to the number of point groups.  The other issue is now that all of these point groups are in the file you are unable to delete them all at once without "crashing" C3D.  So you are left to deleting a handful at time.  It is also best if you turn UNDO off while you do it.

I have been able to duplicate this in multiple files; however, from the same master template.  As a test I did create separate templates (which are pretty bare bones) for the plan production and all works well.  Therefore, there is either an issue with C3D and Plan Production and point groups or it is our template.

I would really like to nail down (as best I can) what is generating the 150 duplicates/ point group name to see if there is a way "around" this.

Currently, I am unable to share the template, but it shouldn't be too difficult to re-create.  Take any template, add some point groups to, add a plan and profile sheet to one of the layouts, create a new file from this template, finally create plan and profile sheets from the layout in the very same template.