3ds Max :: Using State Sets To Manage Output Of Render Elements

We've started using State Sets to manage the output of render elements from our scenes and all was looking great UNTIL we noticed a rather nasty bug.

I hope I can describe this clearly. Here goes:

I have created 3 State Sets as follows:

Beauty
Outputting/saving a bitmap to ".eautyFrame_Beauty_.jpg" from the Render Output 'Save File' section.
No Render Elements enabled.

Reflection
No Ouput/file saved from the Render Output 'Save File' section.
Reflection Render Element enabled and outputting a bitmap to ".RefFrame_Ref_.jpg"

AO
Outputting/saving a bitmap to ".AOFrame_AO_.jpg"
AO material in Material Override section enabled.
Exposure Control deactivated.

Now when I switch between these state sets by clicking on the green arrows in the State Sets dialogue the 'output path' from the Beauty or AO state set gets transposed onto the output path in the Reflection Render Element in the Reflection state set.

It seems that Max 'recreates' the Render element each time the green arrow for that state set is clicked and any active Render Element inherits the output path from the previously active state set.

This effectively renders them unworkable for managing Render Elements.