Experimenting with the new HDR Merge feature in Lightroom CC I am having a lot of trouble with harsh sharp bands appearing in the image, especially around horizon lines and clouds. Sometimes they're not visible unless zoomed in 1:1, other times they're very obvious and ruin the photo. The example below is a crop from one of the worst photos I've merged so far.
Deghost Amount does not seem to effect these bands.
Ooh that's ugly! I would try doing the HDR with fewer images that are further apart in exposure. It appears that the merging algorithm is locking on to the wrong features in the images. Features that actually are moving.