@bill_3305731 you've hit the nail on the head but completely back to front. If you look at the DPR images as is, you would conclude that there is something wrong with the camera - as you did. But in fact, the problem is with Lightroom. You can see the horrible colour smearing in the right hand image - looks like a terrible camera. But if you quickly jump into the develop module for the right hand image and wind the colour noise slider down to 5, you'll see that the colour smearing suddenly disappears.
If you then try the same thing with another camera (eg the Nikon Z7II), you'll find that the same colour smearing effect can be replicated by turning the colour noise slider up to 100.
In other words, there is absolutely nothing wrong with the camera. Lightroom, on the other hand is mangling the R5 image in a way that it doesn't for any other similar camera.
I really hope this is clear and we can focus on getting the point across to Adobe so that they can actually fix it.
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