It would be nice if the deflicker was based on the developed exposure rather than the embedded jpg. I am not sure if this is possible, but the problem can show up if you have to adjust a couple of the images exposures but only a few of them, you can get the exposure close but can cause a flicker, so it would be nice if the deflicker worked on the developed exposure.

Thanks,
Alan

@apsphoto please use the 2-pass workflow, it will give you the results you want.