Import Dialog doesn’t always render the thumbnails when first opened

  • 4
  • Problem
  • Updated 7 months ago
This happens to me often in Lr Classic and has done for many years, but it is inconsistent. Sometimes the thumbnails are all rendered, while sometimes, none are.

I always copy my images from my SD card to a folder using Windows Explorer and then usually right-click the folder in Lr and choose "Synchronize Folder..." from the popup menu in with the option "Show import dialog before importing" selected.

The Import Dialog sometimes, but not always, fails to render the thumbnails on opening, like this

If I mouse over the thumbnails, then those that I mouse over get rendered, like this (I moused over the rendered thumbnail shown)

If I adjust the thumbnail size slider slightly, then all the thumbnails get rendered, as seen here

As I said, this has been happening for years over many versions of Lr Classic. Obviously I have identified work arounds, so I put up with it, but it is still annoying when it occurs and indicates a bug of some kind.

System Info

Lightroom Classic version: 9.1 [ 201911291132-64cf80b4 ]
License: Creative Cloud
Language setting: en
Operating system: Windows 10 - Business Edition
Version: 10.0.18363
Application architecture: x64
System architecture: x64
Logical processor count: 8
Processor speed: 2.1 GHz
Built-in memory: 16365.8 MB
Real memory available to Lightroom: 16365.8 MB
Real memory used by Lightroom: 412.8 MB (2.5%)
Virtual memory used by Lightroom: 5534.1 MB
GDI objects count: 939
USER objects count: 2806
Process handles count: 1965
Memory cache size: 737.4MB
Internal Camera Raw version: 12.1 [ 351 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX
Camera Raw virtual memory: 3081MB / 8182MB (37%)
Camera Raw real memory: 3119MB / 16365MB (19%)
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:
DirectX: NVIDIA GeForce GT 525M (

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

Config.lua flags: None

Adapter #1: Vendor : 10de
    Device : dec
    Subsystem : fc501179
    Revision : a1
    Video Memory : 1989
Adapter #2: Vendor : 1414
    Device : 8c
    Subsystem : 0
    Revision : 0
    Video Memory : 0
AudioDeviceIOBlockSize: 1024
AudioDeviceName: S27D590 (NVIDIA High Definition Audio)
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: 12.1x4
Direct2DEnabled: false

Photo of Anthony Blackett

Anthony Blackett

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Posted 7 months ago

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Photo of Just Shot Me

Just Shot Me

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Yeah you're not alone. A simple swipe over the image thumbs with the cursor reveals them.
Bug of some type, sure. Will it ever be fixed, maybe. 


  • 32 Posts
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You might consider one change in your workflow. Start your import from LR itself. 
1. Insert card.
2. From Library mode, click on Import tab, lower left screen.
3. Go to the upper right of import screen to create target folder for import. 
4. Name files.
5. Designate Collection (if previously built, you cannot create a collection from Import screen)
6. Import

I am working on OS 10.14 Mojave and have not seen this problem. Try working from within LR instead of directly importing from card to folder before opening files in LR.