resulting DNG from enhance (AI denoise) not showing up as stacked overlay

[Kirk37415900j33m]

I am using Lightroom version 7.2 on a Windows 11 PC (system info below) using Fujifilm XT-4 RAF (raw) files.

I have mostly had success using the AI denoise function, creating a stack. However, with some files, the system goes through its 5-7 minutes denoise operation, but no denoised DNG is stacked on the original. I've discovered that I can go into a deeply buried Windows subdirectory "C:\Users\..\AppData\Local\Adobe\Lightroom CC\Data\03403ce712c14965bb82d7e8c980ce33\originals\" and find the denoised DNG file that was created, but it never shows up in Lightroom, even after waiting a day or so. Any ideas on what is going on or how to get the denoised DNG to stack?

Thanks

Lightroom version: 7.2 x64 [ 20240214-0910-27200e9 ] (Feb 14 2024)
NGL Version: 1.36.0.9
WF Version: 6.2 3d4e7aa
VF Version: 1.0.135.7
HIL Version: 40409
CAI Version: adobe_c2pa/0.7.6 c2pa-rs/0.25.2

Operating system: Windows 11
OS Version: Windows 11 Home (2009)
Application architecture: x64
System architecture: x64
Computer model: LENOVO 81TC / Intel(R) Core(TM) i5-10210U CPU @ 1.60GHz
Logical processor count: 8
Processor speed: 2.1 GHz
Built-in memory: 7988.4 MB
Real memory available to Lightroom: 7988.4 MB
Real memory used by Lightroom: 541.4 MB (6.7%)
Virtual memory used by Lightroom: 14114.7 MB
Memory cache size: 35.0 MB

Internal Camera Raw version: 16.2 [ 1763 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 711MB / 3994MB (17%)
Camera Raw real memory: 190MB / 7988MB (2%)

Display: 1920x1080
System DPI setting: 144 DPI (high DPI mode)
Desktop composition enabled: Yes
Input types: Multitouch: Yes, Integrated touch: Yes, Integrated pen: Yes, External touch: No, External pen: No, Keyboard: Yes

Graphics Processor Info: DirectX: Intel(R) UHD Graphics (27.20.100.8729)
Graphics Processor Detail: loaded: Yes, supported: Yes, compute: No, init: I2_GPU2, hard: fail_cached_sanity_test, soft: not_checked, al: No, dl: No
OS Media Capability: true

Application Folder: C:\Program Files\Adobe\Adobe Lightroom CC
Settings Folder: C:\Users\kirke\AppData\Roaming\Adobe\Lightroom CC
Library Folder: C:\Users\kirke\AppData\Local\Adobe\Lightroom CC\Data

[Rikk Flohr: Photography]

Although the information here is incomplete, I suspect your video card does not meet our minimum specifications.  
Please see: https://helpx.adobe.com/lightroom-cc/system-requirements.html and verify your card meets the specifications. 

If it does, you likely need to verify you are up-to-date on your video driver. 

[Kirk37415900j33m]

Thanks. It does appear that my graphics card has only 1 GB VRAM. All other minimum specs are met. But does this explain why AI Denoise usually works quite well, even on RAW files of same size. I'm attaching an example of jpegs exported before and after AI denoise. Occasionally, however, Lightoom does not load the de-noised DNG (which I can find on my local drive) as a stack over the original RAW in Lightroom? I'd prefer not to spend a bunch of money on a new computer meeting the recommended specs only to find the same issue recurs with that.

Again, thanks for response.