P:Canon EOS R5 M2 raws imported into LR 14.1.1 catalog get pink cast when catalog opened in LR 14.2.

@Rikk Flohr: Photography 

Tested with ACR 17.1 and the image above opened with White Balance Temp/Tint 5950/+29. I also bumped Exposure +0.05 to save XMP, then opened in ACR 17.2. Photo showed maganeta colour cast.

So, yes, happens in ACR too.

@johnrellis  testing 17.2 is sufficient for now. I've bugged Classic and they will involve CR as necessary. 

Camera Raw 17.2 displays the photo in the bug recipe with no pink cast, with the corrected As Shot Temp (5950) and Tint (+4):

How do I install Camera Raw 17.1??? The Creative Cloud desktop app doesn't provide access to previous versions. I uninstalled Photoshop 26.2

 and installed 26.1 but still got Camera Raw 17.2.  I used the Creative Cloud Cleaner Tool to uninstall Camera Raw 17.2 and it no longer shows any version installed, but I still get Camera Raw 17.2 when I open the raw.  The Internet Archive claims to have 16.2, but I get the error "The disk you attached was not readable" when trying to open the downloaded .dmg.  

@johnrellis  @drtonyb  Do you see the same behavior in Camera Raw?

@johnrellis 

I have also been testing this user's images, and it's not only the Tint that can change between Imported by LrC 14.1.1 and opened in LrC 14.2 or vice versa, but for one of the provided images, the Temperature also changed depending on which version of LrC was used to import the file.

Since it appears that the user shoots with the Canon EOS R5 M2, all their images are affected. I tested some other CR3 files, not shot with EOS R5 M2, and they were unaffected.

Looks like a serious bug to me.

I see (via the Lightroom Queen bug list) that 14.2 fixed a bug with the Canon R5 M2 As Shot Temp:

https://community.adobe.com/t5/lightroom-classic-discussions/canon-r5-mark-ii-white-balance-kelvins-big-difference/m-p/14973046

I didn't find this initially because the report is in Discussions, not Bugs, and the bug fix isn't listed in the Adobe bug list:

https://helpx.adobe.com/lightroom-classic/kb/fixed-issues.html?trackingid=M7K4SJ69&mv=in-product

The bug fix has changed the appearance of photos imported prior to LR 14.2. What should a user with thousands of edited photos from prior versions do when they upgrade to 14.2 to maintain the photos' appearances?

Hello,

I worked on a series of photos with lightroom classic version 14.1.1 and CameraRaw 17.1.

Everything was fine, until I updated Lightroom to version 14.2 and CameraRaw to version 17.2.

After this update, when I looked at all my photos again, the tint had changed, all of them had turned magenta for some reason.

I looked at other photos in my catalog, and it was the same.

This is very problematic, as it affects the rendering of all the photos in my catalog.

Does anyone have the same problem?

Thanks in advance