Looks like a bug in CC2017 (CS6 and CC2015.5.1 work correctly)
When in Lab image mode, a color balance adjustment layer cannot be added.
Image adjustments color balance does work - but that loses the ability to go back and re-adjust
I was wondering if anyone else was having this issue or if it's just my end.
I tried making a color balance adjustment layer in LAB Mode and was given this error.
"Could not complete your request because that content type is not supported for this color mode"
Reset Photoshop Preferences - Problem Still occurred
Reinstalled Photoshop CC2017 - Problem Still occurred
Tried using CC 2015/2015.5 - No issues.
Opened PSD in 2017 which included a Color Balance Adjustment Layer from 2015/2015.5 - Was issued the following prompt:
"This document contains unknown data which will be discarded to keep layers editable. To preserve the original appearance instead, choose Flatten to load composite data as a flattened image."
Mac Pro (late 2013) - osSierra 10.12.1
3 GHz 8-Core Intel Xeon E5
AMD FirePro D700 6144 MB
Looks like you're right. I rarely use that adjustment in any color mode, but it certainly doesn't add an adjustment layer in LAB mode. I'm on a Mac running Yosemite, so this isn't something we can blame on Sierra.
There's a bug in my Photoshop CC that was spoken about 3 months ago, but it still hasn't been fixed.
When in Lab Color Mode I get this error "Could not complete your request because that content type is not supported for this color mode." when I try to add a Color Balance Adjustment Layer.
It was discussed here: https://feedback.photoshop.com/photoshop_family/topics/photoshop-cc2017-cannot-add-color-balance-adj...
The official response given was that it was a bug.
This was 3 months ago and I'm still getting this error. Has this bug not been fixed? When will the issue be corrected? 3 month is a long time for a bug to exist when we are paying by the month.
Photoshop 2017.0.1 macOS Sierra 10.12.3