swirl on floor before Monk lands in Cathedral

Level 11 female Monk; has completed Skeleton King quest multiple times.

New game, invite-only, start fresh in Tristram. Work thru the first few quests, up to the point of first entering the cathedral. Open door, kill first 3 bad guys, activate Mantra of Retribution, walk to the edge of the big hole, click on loose floor-stones. The view changes to inside Cathedral Level 1. Note that the rotating orange/yellow design, signifying that Mantra of Retribution is active, is visible on the floor for 1-2 seconds *before* Monk jumps down and lands on that level.

This screenshot is from a multi-player game but does clearly illustrate the problem:
'http://i1222.photobucket.com/albums/dd490/ride8hardPB/MantraDesignOnFloorButNoMonk.jpg'