TF bug 10.9.2 coverflow dual mode

In TF under 10.9.2 on a Retina macbook pro- bug in dual mode view. When using column view overflow mode (dual mode). Browsing items on the left side of the dual view always moves the placement of the items to the far right for that window when moving through the items. The right coverflow is unaffected.

The problem is intermittent. Changing it and back corrected it! Thanks!