I got the issues after the last Lightroom CC update to 2015.5.1 version:
1. I lost my color profiles. I know how to fix it so it's not a point of interest;
2. I see different colors in Library and Develop mode with GPU accelerate mode on. It's the same situation as for RAW so as for JPEG files. It could be fixed only by switching off the GPU acceleration which is not a best way.
Does anyone get the same issue with the last Lr CC? How did you solve it?
Is this Windows or Mac, and what version of operating system? Can you explain what you mean by "I lost my color profiles"? And finally: what graphics card do you use?
I can't think of any reason either monitor profiles or camera profiles should be affected (they weren't for me). If there's a difference between Library and Develop with GPU accelerate on, and that didn't used to happen, my first test would be to check the video driver. Has it updated recently? If so, try rolling back. If not, try updating the driver if there's a new version. Next thing would be to recalibrate/reprofile the monitor(s).
Thank you, it was the monitor profile. Can't get the idea why it became "defective", I went through the standard windows' profile creation process and get my colors back in Lr.
Yes, it was monitor profile. I use ATI FirePro V4900 and run my Lr on Windows 10 Pro.
The strange thing is that there were no changes to hardware, drivers or other software except the Lightroom.
Glad it's fixed.
Can't get the idea why it became "defective"
run my Lr on Windows 10 Pro
Windows 10 installations and updates are known to install manufacturers' monitor profiles, which surprisingly often are low quality.
In addition, Lightroom is particularly picky about the monitor profile, and can have problems with a profile that Photoshop finds to be perfectly alright.
The reason that sRGB works, is that most monitors have a color gamut close to the sRGB color space.
It may, or may not be good enough for you. If you care about color accuracy, get a hardware calibrator, which will create a monitor profile that accurately describes your monitor.