Libraries now converts all my saved Spot CMYK swatches to RGB.
I can no longer bring in my previously made Spot CMYK swatches as CMYK. All my spot color swatches are converted to RGB. I can create new spot CMYK swatches that come in properly in a newly created library but anything created in the past or in a previously made library is now all RGB.
Please get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html . Since this is not a generic issue that we can reproduce at our end, we will need someone to look into your machine to figure out what is going on here.