AI Denoise with Nikon Z8 NEF files not working

[Jonathan3006742821dl]

AI denoise doesn't appear to be working for me for Nikon Z8 NEF files in Lightroom Classic. I'm attempting to denoise before any other editing of the files. The Enhance Preview shows "Loading" but never actually loads.   If I click Enhance I get an error message "There was an unknown error. (1)"  I'm using the latest version 12.3 and Camera Raw 15.3.1.  PC with Windows 10.  I have been successfully using AI Denoise with Z6 NEF files no problem.

I also don't seem to be getting the option for Auto Tone corrections (although shift double-click on each slider auto-corrects).

Is this just a case of waiting for a further update for a new camera or is it something more sinister?

Thanks

Jonathan

[GoldingD · Accepted solution]

The 14-bit NEF raw file?

• Lossless compressed

or

• High Efficiency*

or

• High Efficiency

at this time, compressed RAW not supported

[Jonathan3006742821dl]

Thanks for your reply.  It's lossless compressed.

[Jonathan3006742821dl]

And just to add a bit more info in case it's relevant.  I'm shooting lossless compressed to CX, JPEG fine* to SD as backup, tone mode is SDR.  And it's definitely the raw file I'm trying to denoise not the jpeg.  Anything else I should be looking out for?  Thanks

[Jonathan3006742821dl]

Sorry!  I completely misunderstood your reply thinking you meant the more compressed files were not supported.  I have switched to HE* and it seems to be working now.  Thank you!