P: Denoise of HDR merge file results in color artifacts

[RuuduitdeGraaf]

Today updated my LR from 13.x to 14.0, looking forward for the improvements, especially 
Denoise supports more RAW file formats. (incl HDR and panorama DNG files)
Just tried it on my windows machine (Windows 11, version 23H2)
I did: 
HDR Merge of 5 Sony .ARW files into a new HDR-enhanced.dng file : looks good / as expected

Denoise AI of this file results in many (awful) : see partial screenshot (100%)

Am I doing something wrong? 
Can give details if needed (computer info, Driver details etc.)
Thanks! 

[Rikk Flohr: Photography]

Can you supply the merged DNG for us to take a look?

[RuuduitdeGraaf]

Rikk, please use this link. Also sent to you via a personal message. It is a link to WEtransfer 
https://we.tl/t-dzBGCgoayI

[RuuduitdeGraaf]

Just to be clear : this is the merged HDR that looks good. So the file that I used as input for the Denoise AI.

[Rikk Flohr: Photography]

Thank you. I am conferring with the Camera Raw team on this file. 

[RuuduitdeGraaf]

Thank you. 
My workflow was in LR this time. 
1) LR : HDR merge 5x Sony .ARW file
2) LR : Denoise AI on merged file from step 1)

[Cagno Di Media Production]

I have put together 5 pictures. The result is an HDR DNG image. When trying to denoise the file, a graphic color error occurs. See the attachment.

[jeffreys75868324]

Thanks for catching and reporting this. Can I request the originals that were used to merge to HDR? I have not been able to reproduce this will similar night ARW HDR images. 

[RuuduitdeGraaf]

Hello Jeffrey I wil send you the originals tomorrow during the day (Europe)

thanks for reaching out to me. 

[RuuduitdeGraaf]

Hello Jeffrey,

This is the link https://we.tl/t-z5zCPh4o2H to the 
* 5 original RAW files (Sony .ARW)
* HDR merge (.dng) this is looking correct
* HDR merge with Denoise AI with the awful colors and artifacts.
Thank you for looking into this. 

[Rikk Flohr: Photography · Accepted solution]

Thank you for sending the sample files. The dynamic range of the scene you've photographed and merged is beyond the ability of the Denoise model for Linear Raws. The team is evaluating future enhancements for this tool, and your images are a nice real-world example. 

[RuuduitdeGraaf]

Thank you Rikk for the instand feedback. 
fyi. I've applied the same workflow, this time not on 5 but only the 3 brightest pictures, the result is better but still a mess. (unusable)

[Rikk Flohr: Photography]

Some additional improvements were made in the December Release. 

[RuuduitdeGraaf]

Hi Rikk, 
Eagerly tried the updated version LR14.1 on my W11 machine, but unfortunate the result is no different than before.
My flow: LR 14.1 HDR merge (3 files) --> LR14.1 Denoise --> see result below.
Appreciate your feedback! 
And a big thank you and Adobe for keeping me/us up to date on the progress via this community.