I'm not sure - I guess I didn't know there was an option for embedding color profiles in the Bridge previews.  The xmp file, I believe, includes the color profile, and I have my ACR settings set up so that when I open the file in Photoshop it will be output in Adobe RGB (same as shot). 

There is no purple, nor any pixelation, when the image is opened in ACR or in Photoshop.  It's only in the preview.

Is there some way to tell Bridge to create more accurate previews?  It seems like it's just creating a fast/low quality preview to reflect (poorly) changes that have been made in ACR. 

I don't see that option.  Here's what the "Thumbnail" tab of my options looks like:

The thumbnails do show the same weird color effects, but I'm far more concerned with the previews than the thumbnails. 

Other settings that seem like they might be relevant:

"Keep 100% Previews In Cache" is checked (under Cache tab)

"Generate Monitor-Size Previews" is checked (under Advanced)

"Preserve Embedded Color Profile" is checked (under Output)

Thanks for troubleshooting with me . . .

Oh, ok found it. 

I have "Always High Quality" checked, but I don't have "Generate 100% Previews" checked.  Seemed like that would be resource-intensive . . . . But I tried checking that option as well, waiting for it to finish generating full previews for the folder, and then purging the cache: to no avail.  The previews still look the same.

(Note that the previews look this way in the Preview pane, but when I click the preview examine close detail, it looks correct within the little magnifier box.)

c.pfaffenbichler wrote:

I meant whether the profile was embedded in the image file itseld.

Oh.  Yes, it's embeded.