Lightroom Classic Develop mode won't show image but Library mode will

[#1]

I've scoured the hundreds of posts on this same issue, however it IS NOT a GPU problem as GPU acceleration isn't even supported with my system, and it is not the monitor color profile either, I tried. There still remains a gray screen in the develop module, and the editing settings are all grayed out. I also tried uninstalling and reinstalling. HELP PLEASE! I'm so frustrated. I revamped my old pc and monitor JUST for photo editing, I don't want to go back to my tiny laptop. Might switch to Capture One Pro if Adobe can't solve this.

Here is system info: 

Lightroom Classic version: 9.1 [ 201911291132-64cf80b4 ]
License: Creative Cloud
Language setting: en
Operating system: Windows 10 - Home Premium Edition
Version: 10.0.19041
Application architecture: x64
System architecture: x64
Logical processor count: 4
Processor speed: 2.4 GHz
Built-in memory: 7664.5 MB
Real memory available to Lightroom: 7664.5 MB
Real memory used by Lightroom: 379.5 MB (4.9%)
Virtual memory used by Lightroom: 465.2 MB
GDI objects count: 633
USER objects count: 1901
Process handles count: 2539
Memory cache size: 6.0MB
Internal Camera Raw version: 12.1 [ 351 ]
Maximum thread count used by Camera Raw: 3
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 3MB / 3832MB (0%)
Camera Raw real memory: 4MB / 7664MB (0%)
System DPI setting: 96 DPI
Desktop composition enabled: Yes
Displays: 1) 1920x1080
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info:

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic
Library Path: C:\Users\***\Pictures\Lightroom\Lightroom Catalog.lrcat
Settings Folder: C:\Users\***\AppData\Roaming\Adobe\Lightroom

Installed Plugins:
1) AdobeStock
2) Facebook
3) Flickr
4) Nikon Tether Plugin

Config.lua flags: None

Adapter #1: Vendor : 1002
Device : 9640
Subsystem : 2acd103c
Revision : 0
Video Memory : 495
Adapter #2: Vendor : 1414
Device : 8c
Subsystem : 0
Revision : 0
Video Memory : 0
AudioDeviceIOBlockSize: 1024
AudioDeviceName: Headphones (DY28 Plus Stereo)
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 44100
Build: 12.1x4
Direct2DEnabled: false

[#2]

I've scoured the hundreds of posts on this same issue, however it IS NOT a GPU problem as GPU acceleration isn't even supported with my system, and it is not the monitor color profile either, I tried. There still remains a gray screen in the develop module, and the editing settings are all grayed out. I also tried uninstalling and reinstalling. HELP PLEASE! I'm so frustrated. I revamped my old pc and monitor JUST for photo editing, I don't want to go back to my tiny laptop. Might switch to Capture One Pro if Adobe can't solve this.

Here is system info: 

Lightroom Classic version: 9.1 [ 201911291132-64cf80b4 ]
License: Creative Cloud
Language setting: en
Operating system: Windows 10 - Home Premium Edition
Version: 10.0.19041
Application architecture: x64
System architecture: x64
Logical processor count: 4
Processor speed: 2.4 GHz
Built-in memory: 7664.5 MB
Real memory available to Lightroom: 7664.5 MB
Real memory used by Lightroom: 379.5 MB (4.9%)
Virtual memory used by Lightroom: 465.2 MB
GDI objects count: 633
USER objects count: 1901
Process handles count: 2539
Memory cache size: 6.0MB
Internal Camera Raw version: 12.1 [ 351 ]
Maximum thread count used by Camera Raw: 3
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 3MB / 3832MB (0%)
Camera Raw real memory: 4MB / 7664MB (0%)
System DPI setting: 96 DPI
Desktop composition enabled: Yes
Displays: 1) 1920x1080
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info:

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic
Library Path: C:\Users\***\Pictures\Lightroom\Lightroom Catalog.lrcat
Settings Folder: C:\Users\***\AppData\Roaming\Adobe\Lightroom

Installed Plugins:
1) AdobeStock
2) Facebook
3) Flickr
4) Nikon Tether Plugin

Config.lua flags: None

Adapter #1: Vendor : 1002
Device : 9640
Subsystem : 2acd103c
Revision : 0
Video Memory : 495
Adapter #2: Vendor : 1414
Device : 8c
Subsystem : 0
Revision : 0
Video Memory : 0
AudioDeviceIOBlockSize: 1024
AudioDeviceName: Headphones (DY28 Plus Stereo)
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 44100
Build: 12.1x4
Direct2DEnabled: false

[#3]

Is your creative cloud subscription current and are you signed into it with the Creative Cloud desktop app?

[#4]

yes!

[#5]

"it is not the monitor color profile either, I tried"

If you recalibrated, that may not be a sufficient test. The best test is to temporarily set the display profile to be sRGB, as described here:

http://www.lightroomqueen.com/articles-page/how-do-i-change-my-monitor-profile-to-check-whether-its-...

[#6]

Yes that's what I'm saying, I already did this. 

[#7]

To build on Theresa_J's suggestion, in LR do the menu command Help > Sign Out followed by Help > Sign In. That has resolved this issue for at least a few others.

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