Small bug in rendered 3D output

[frailer]

When using a 6-to-view (12pp section) saddle stitch, rendered 3D seems to offset some pages vertically, either direction. It may be happening where the impo pages sit foot-to-foot. Haven't had time to track it today.
FFEI have confirmed it occurs on the JDF-based patterns, as well as home-brewed Custom ones.
It has been logged for attention. Just a heads-up. Workaround would be to do a second workflow using standard head-to-head sigs., either 4 or 8 to view. Render 3D from that.
Other patterns seem unaffected.