Lightroom Mobile Noise Reduction not working on dng files

Please post your System Information as Lightroom Classic (LrC) reports it. In LrC click on Help, then System Info, then Copy. Paste that information into a reply. Please present all information from first line down to and including Plug-in Info. Info after Plug-in info can be cut as that is just so much dead space to us non-Techs.

Sample below as of 7/1/2021

Lightroom Classic version: 10.3 [ 202105281559-8dc50eb4 ]
License: Creative Cloud
Language setting: en
Operating system: Windows 10 - Business Edition
Version: 10.0.19043
Application architecture: x64
System architecture: x64
Logical processor count: 8
Processor speed: 4.0GHz
SqLite Version: 3.34.0
Built-in memory: 16317.1 MB
Real memory available to Lightroom: 16317.1 MB
Real memory used by Lightroom: 1302.8 MB (7.9%)
Virtual memory used by Lightroom: 1586.9 MB
GDI objects count: 746
USER objects count: 2288
Process handles count: 1909
Memory cache size: 252.3MB
Internal Camera Raw version: 13.3 [ 807 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 299MB / 8158MB (3%)
Camera Raw real memory: 303MB / 16317MB (1%)
System DPI setting: 96 DPI (high DPI mode)
Desktop composition enabled: Yes
Displays: 1) 2560x1440
Input types: Multitouch: No, Integrated touch: No, Integrated pen: Yes, External touch: No, External pen: Yes, Keyboard: No
Graphics Processor Info: 
DirectX: NVIDIA GeForce GTX 1070 Ti (27.21.14.6089)

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic
Library Path: F:\Files\Pictures\Vacations and Day Trips\Photo Trips\24 Photo Trip September 2019\24 Photo Trip September 2019-v10.lrcat
Settings Folder: C:\Users\goldi\AppData\Roaming\Adobe\Lightroom

Installed Plugins: 
1) Aurora HDR
2) ColorChecker Camera Calibration
3) DxO PhotoLab 3
4) DxO PhotoLab 3 Importer
5) HDR Efex Pro 2