Problem:

Resolving of partner variables has been dependant to grouping function and was absolute (nethertheless, what the DATA-IN X-Path selection has been)

Solution:

From release 8.0.12137( 8.0.11908 beta) on, the resolving is relative to the DATA-IN X-Path selection to partner nodes. Take care, that the given X-Path’s at the “insert::” clause are relative to the DATA-IN X-Path selection.