Ignore this if you don't use Aurora HDR (but if you shoot HDR you should check it out). For those that use Aurora HDR take note of the option to implement Ghost Reduction. It is hidden on the opening screen that shows your HDR images next to the Auto Align checkbox. There is a little Wheel pull down menu and the Ghost option is there. For a long time I blew it off but at some point I realized it's quite important and now I use it by default. Here are two images showing the difference it can make, particularly if anything moves between one exposure and another. Ghost Reduction was used on the right side.

