Hello,
I have been having multiple issues with Lightroom Classic, and it seems that many of them are catalog/preview issues. I'm hoping that there is a root cause for all of the issues I'm having, but anyone with more knowldege than me can be the judge of that. I'm going to describe each issue seperately, detail the troubleshooting I've attempted, then provide system and version information at the end.
Currently Lightroom only opens with an old catalog, but I have used the most recent backup catalog has been functional in the past so I'm pretty sure it is intact.
1. The first issue I have is the following error:

This issue has been persistent through several remedy methods:
- Uninstalling and Re-installing Lightroom Classic
- Closing Lightroom instances in Task Manager
- Starting Lighroom from a backup catalog
- Restarting my computer and starting Lightroom from a backup catalog
It seems to crop up at random instances, not really prompted by anything consistent, and going a way on a whim which is endlessly frustrating. Sometimes the error message above does not show up at all, and Lightroom loads partially, before freezing and requiring a hard shutdown of my computer. At the time of this post it is not showing this issue but earlier today it was coming up.
2. Most folders in my catalog are showing a content of 0 photos:
These folders are associated with the same named folders on my hard drive. The folders on the hard drive are present and accessible like normal. My recent imports (past few weeks) are accessible like normal, the majority are not present in lightroom. This issue has not always been present, it has only cropped up sometime in the last 2 months. I cannot show my own folders showing zero due to the underlined problem at the top of this post but it is similar to the photos from this post.
I'm sure these are not the only issues I have had but the others are obscure or minor enough that they have not come up recently. These problems with Lightroom have been tremendously frustrating, and any solution is greatly appreciated. Anything I can provide or answer to help you I'm willing to give you.
System Info from Lightroom:
Lightroom Classic version: 14.0.1 [ 202410161356-30922cfc ]
License: Creative Cloud
Language setting: en
Operating system: Windows 11 - Business Edition
Version: 11.0.22631
Application architecture: x64
System architecture: x64
Logical processor count: 8
Processor speed: 2.4GHz
SqLite Version: 3.36.0
CPU Utilisation: 2.0%
Power Source: Battery
Built-in memory: 16064.2 MB
Dedicated GPU memory used by Lightroom: 57.9MB / 128.0MB (45%)
Real memory available to Lightroom: 16064.2 MB
Real memory used by Lightroom: 805.3 MB (5.0%)
Virtual memory used by Lightroom: 655.4 MB
GDI objects count: 1124
USER objects count: 3613
Process handles count: 2045
Memory cache size: 0.0MB
Internal Camera Raw version: 17.0 [ 2043 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 0MB / 8032MB (0%)
Camera Raw real memory: 1MB / 16064MB (0%)
Cache1:
NT- RAM:0.0MB, VRAM:0.0MB, Combined:0.0MB
Cache2:
m:0.0MB, n:0.0MB
U-main: 123.0MB
System DPI setting: 120 DPI
Desktop composition enabled: Yes
Standard Preview Size: 1920 pixels
Displays: 1) 1920x1080
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No
Graphics Processor Info:
DirectX: Intel(R) Iris(R) Xe Graphics (32.0.101.5763)
Init State: GPU for Display supported by default with image processing and export supported in the custom mode
User Preference: Auto
Enable HDR in Library: OFF
Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic
Library Path: C:\Users\will\Pictures\Lightroom\Lightroom Catalog.lrcat
Settings Folder: C:\Users\will\AppData\Roaming\Adobe\Lightroom
Installed Plugins:
1) AdobeStock
2) Flickr
Config.lua flags:
Adapter #1: Vendor : 8086
Device : 9a49
Subsystem : 87e1103c
Revision : 1
Video Memory : 128
Adapter #2: Vendor : 1414
Device : 8c
Subsystem : 0
Revision : 0
Video Memory : 0
AudioDeviceIOBlockSize: 1024
AudioDeviceName: System Default - Speakers (Realtek(R) Audio)
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: LR5x26
Direct2DEnabled: false
GL_ACCUM_ALPHA_BITS: 16
GL_ACCUM_BLUE_BITS: 16
GL_ACCUM_GREEN_BITS: 16
GL_ACCUM_RED_BITS: 16
GL_ALPHA_BITS: 8
GL_BLUE_BITS: 8
GL_DEPTH_BITS: 24
GL_GREEN_BITS: 8
GL_MAX_3D_TEXTURE_SIZE: 2048
GL_MAX_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_UNITS: 8
GL_MAX_VIEWPORT_DIMS: 16384,16384
GL_RED_BITS: 8
GL_RENDERER: Intel(R) Iris(R) Xe Graphics
GL_SHADING_LANGUAGE_VERSION: 4.60 - Build 32.0.101.5763
GL_STENCIL_BITS: 8
GL_VENDOR: Intel
GL_VERSION: 4.6.0 - Build 32.0.101.5763
GPUDeviceEnabled: false
OGLEnabled: true
[shortened by Mod.]
[moved from bugs to discussions according to the community rules - Mod.]