Missing image file icons in Finder (JPG, TIF, PNG)

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Missing image file icons in Finder (JPG, TIF, PNG)

Post by TomUnderhill » Sun Nov 04, 2012 3:00 am

I've noticed that some of my image file icons, column-view previews and cover flow in Finder are blank or missing.

In a directory of somewhere around 100 image files (all are TIFs, JPGs, PNGs which I scanned with the latest version of SilverFast and edited in Photoshop CS6), approximately 15% to 20% have blank icons and previews. The file data itself is fine and files open without problems in both Preview and Photoshop. When I view a directory with the icon view, Finder makes an appropriately-sized white space for the "phantom icon" and the grid is normally spaced. The missing icons occur in the following states:

  • original scans from SilverFast
      These are RGB JPGs at 300dpi
      Files range from several hundred KB to several MB in size
  • work in progress files edited in Photoshop CS6
      Edits include introducing transparency and layers
      Out of habit I use TIF instead of PSD because PSD saves are single-threaded whereas TIF saves are multi-threaded
  • final files ready for use with InDesign
      JPG for files that do not include transparency
      PNG for files with transparency
I see missing icons at each step of the process, but there are no dependancies I have yet discovered. For example, if my original JPG scan had no icon, the work-in-progress TIF or final PNG files very well could have icons. In some cases where an original scan was missing the icon, the work in progress TIF or final PNG files have also been absent. Same holds true for original JPGs with icons where a work in process TIF or final PNG might not have an icon.

I rely on image previews throughout the Finder when selecting and placing photos in my book publishing workflow. Any ideas on how to resolve?
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Re: Missing image file icons in Finder (JPG, TIF, PNG)

Post by grahamperrin » Sun Nov 04, 2012 8:52 am

Console view of all messages may be revealing.

I guess that for each affected file where you see blankness, you expect to see:

  • an icon that represents the content
  • not the generic icon for a JPEG, TIFF or PNG.

To me, the symptoms indicate an issue that may be generalised, not specific to ZEVO.

Is the pool on external disks and if so, can you reproduce the symptoms with all three Macs?

In the meantime I'll have a sniff around Ask Different to see whether anything pops up.
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Re: Missing image file icons in Finder (JPG, TIF, PNG)

Post by si-ghan-bi » Sun Nov 04, 2012 12:45 pm

Is this the same issue I mentioned in Folder icons?
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Re: Missing image file icons in Finder (JPG, TIF, PNG)

Post by grahamperrin » Sun Nov 04, 2012 12:56 pm

I suspect not. From a distance this smells, to me, of something wrong at a level that impacts things such as Quick Look.
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Re: Missing image file icons in Finder (JPG, TIF, PNG)

Post by TomUnderhill » Sun Nov 04, 2012 11:19 pm

si-ghan-bi wrote:Is this the same issue I mentioned in Folder icons?


I agree with Graham. I'm not attempting to paste in a custom icon for a folder, just view the regular content-generated view of an image file.

grahamperrin wrote:To me, the symptoms indicate an issue that may be generalised, not specific to ZEVO.

Is the pool on external disks and if so, can you reproduce the symptoms with all three Macs?


The pool is on the 3x2TB RAIDZ in my Mac Pro. I have not actively tried to reproduce it on the other two Macs, but did some scanning on one of them with a Canon printer/scanner. Did not see any content-related icon problems there.

I will see if I can reproduce the symptom on my HFS+ boot drive with a few scans to it, as well as copies of the files to the HFS+ drive.

Let me know if you dig anything up. Thanks.
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Quick Look stuff in Ask Different

Post by grahamperrin » Mon Nov 05, 2012 5:35 am

With the quicklook tag for Quick Look as a starting point:


– that first, then to the right of the page there are two linked questions.

If none of those three help, then straying from your Mountain Lion environment, there's this for Snow Leopard:


If none of the above works around the problem then maybe it's not Quick Look. Or I could revisit a question with not yet accepted answers:


– the answer from bmike is probably correct, I just haven't had an opportunity to verify what's there.
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Re: Missing image file icons in Finder (JPG, TIF, PNG)

Post by TomUnderhill » Mon Nov 05, 2012 1:57 pm

Before I do anything else this morning... I'm reporting back on this issue.

Just a reminder... all references to missing file icons refer to an icon generated from the image content of the file.

In Finder:
    Column view shows no file icon but a preview pane view.
    List view shows no file icon.
    Icon view shows no file icon. I can click on the "empty" space and select the file.
    Cover flow shows no file content in the files missing icons, but does show for the files with icons.
When I copy the files to a JHFS+ volume, all files show as expected.

Reset the QuickLook cache.
Code: Select all
qlmanage -r

No change in icons, previews or Cover Flow.

I followed Graham's reference to its source. When I compare what I'm seeing in the Finder window, the folks also needing help posted an image with "dummy" file icons (paper with corner turned down). I'm seeing representations for folders and some files, but a blank area for the missing images. This may just be the difference between 10.6 and 10.8.

Selecting the file and hitting space bar brings up the file's QuickLook as it should. Closing the QL window does not change the icon. Not sure this issue sits with QuickLook. No quicklookd references in Console.

I'm closing the QuickLook door for now to focus on other aspects of the search. I'll update if/when I find more.
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cross reference

Post by grahamperrin » Tue Nov 06, 2012 2:32 am

Under for a new child file system, the application can't be found:

> for both files, document content was not previewed in the preview column of Finder

– but the set of symptoms in that topic was transient, I doubt that the behaviour will be easily reproducible.
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