Hmmm, it actually doesn't work as stated. There is no Save button, but rather "Copy Current Settings to Before." If you don't pick correctly you wind up confused. I have never experienced the problems you say existed in the legacy swap feature. It always worked as I expect. You now add an extra step, and if you foul up, the only recourse is to go to ACR defaults blowing all your settings. No, I want the simple, before/after button we had before. Yes it may be powerful for some, but a drag for others. After 15 years with Photoshop, I am weary of cumbersome learning curves for simple to complex operational changes. (I still don't like the way Crop works in Photoshop, and I rarely use it in ACR). If I am out in left field, perhaps there are others and therefore suggest a tutorial be provided when abandoning simple ways for complex ones so that those of us that only want the simple legacy can have it. I see it in the Brightness Contrast Adjustment Layer, so I know it's possible. At the very least, it gives us a fighting chance to go back when we are under the gun editing. Some of us actually bill for out time. I had to sharpen in PS only for the last job I did.
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