I do see the little weird artifacts you're talking about. I'm not sure what they are, whether they are bayer artifacts, movement-produced artifacts, or it is possible something is not quite right with that particular unit. It almost appears as if there is a calibration error with the sensor calibration file itself. It looks similar to what I've seen with other DB's when there have been corrupted calibration files. Hard to say...
well, i studied various bayer artefact patterns in the past and for me they look like. ofcourse they jump into the eye more for the already applied
sharpening. no idea how a calibration file could affect this, and for sure its not blur or movement.
one word about "default" sharpening. i understand that this is a nice marketing thing cause your files look sharper
in direct comparision. further there is no problem with this way of konverting as long you dont uprez the images by much.
but if you do it can be very difficult to start with an already sharpened file, more so because the applied sharpening in C1
at 0setting is not so little. i do this quite often ( uprezzing ) and starting with sharpened files i cant avoid to run into stairstepping
issues and other artefacts, which are nearly impossibler to hide at big sizes. also blurring the (bayer?)artefacts becomes very visible
in this case, they would be much softer if starting with unsharpened files.
there is a reason why many people suggest to sharpen files at the end of the chain.