Elevation labels and named groups in Dynamic Views

Hello,

I would like to know why every time I open a Dynamic view created with the Elevation Callout a new Named group is created for the Elevation labels. In the image below you can see the 3 named groups created every time I open this drawing file (3 times now). 

Is there a way to avoid this?

It is not a big problem because I can hide the levels or even delete the elevation labels.

I'm using ABD version 08.11.09.831.

Thank you and happy new year everybody.