Data shifted in PxMM IDE debug mode

A user found that when passing  structure to a sub-program (UDFB) that the data is shifted within the structure. All values are shifted down by one variable. This is an  IDE display (animation) issue.  The actual underlying data is correct.   The problem only occurs with the first Retain variable.  The immediate work around is to either create a dummy variable as the first Retain variable or if the first Retain variable is a structure, don’t pass it to a UDFB.