Earlier quoted context omitted.
Those are from vastly different source pictures, I think. The "original" was from mostly thumbnails and a couple full-res pics, I believe, whereas the "fixed" one is from the high-res pics they just released today. They just had a press conference at 1pm ET/12pm CT today about the debris on top of Curiosity, which you can see in those images. Either way, that's a really nice stitch job!
Do you have a link to the tldr of the conference about the debris? I'm curious if they think it's a problem.. ?
Anyway the gist was that they had not predicted that debris would get kicked up like that (or at least not this much, I think), but it doesn't sound like it'll cause problems. My take is that even if they didn't expect to kick things up during landing, she's gotta be tough enough to withstand the winds as well as a bit of rough-and-tumble while roving around.