Panasonic G85 IBIS Problems? G85 Compared Against the GX80

A few people are reporting issues with image stabilization on the Panasonic G80/81/85.  These are early days but it appears that the G85 does not move smoothly when panning on a tripod and then same stickiness happens when panning handheld.  See the following video for a demonstration.  Let us give Panasonic a chance to address this via firmware but if they do not this will be very disappointing and will result in us recommending a do not buy on the G85.