Sony A7iv - Raw Files - Denoise - Lightroom?

Hello lovely community members! 

Has anyone been able to use this feature on Lightroom? Denoise is alwauys greyed out! 

These are uncompressed RAW Images. Never seem to work. 

Would love any feedback or comment to have this fixed and get it working. 

I remember maybe a year back it used to work. Not sure what Adobe changed to make it not work, sigh. 

Thank you!