Lighting Warp trying to cull non-cullable targets

Look like some people already experience and report this some days ago. The problem happen when you cast Lighting Warp on a non-cullable target, it prioritises that target over other cullable and Lighting Balls. If cursor cast far enough from non-cullable target then the Warp lock on to other cullable/balls as normal. The non-cullable target that been casted on also get culled immediately as soon as its hp drop down to cullable level.