WowAce

When the following situation is in effect:

Row Growth: Up

Column Growth: Right

Groups per row: 4

the anchor point of the raid frames shifts when the first group per block has less player frames than the others.

Eg if:

Group 1 has 3 players

Group 2 has 5 players

then the whole block moves down by 2 spaces so that the anchor point is still the bottom left of Group 1, however Group 2 now moves below the anchor point.

Just use the above settings and have less people in the first group - you'll notice immediately what I mean.