quicklook (preview) thumbnail is black in column view

I can hardly believe that the MacOS 15.4.1 update still hasn't fixed this bug. For people who need to quicklook NEF, this is simply a fatal blow.

Me too. Ugh! Quick Look appears broken in 15.4 when trying to access CR2 files. (So much for the old workflow.) Problem persists when testing in a new account. Am still able to view and edit files within Lightroom.

Prior to finding this thread, tried a variety of steps--none of which helped.

Relaunched Finder

Force Quit Finder

Force Quit Quick Look Processes

Cleared Cache

Rebooted

Tested in Safe Mode

I don't know how soon it will be, Certainly not before Sequoia 15.5.

Feel free to send Apple a bug report.

Feedback - macOS - Apple

Hi all in the thread.

I have a simple work around to the RAW images displaying as black when using (spacebar) quickview.

1. use spacebar to view in quickview - the image is black.
2. drag one of the view corners to resize the quickview window. Make it around half the size of the initial window size. The image appears.

In my personal situation, the default size of the quickview window for a 24 Megapixel image is quite large. Reducing the size of it by dragging it to a smaller window size (once it first displays as black) allows the quickview to redraw the image successfully. You might also notice that slowly dragging the quickview window size back up allows it to view larger, but it needs to be done slowly. I suspect there is either some kind of memory allocation or latency issue or an issue with the recursive way the window is updated in software that causes it to fail to redraw.

Not a solution, but a quick way to peek at the image using quickview.

I hope this helps.

Michael

FWIW, if you are viewing RAW files, there is a known issue with certain cameras that were supported before Sequoia 15.4.

Hi, I have same problem since Sequoia 15.4 update. But with space bar quick view is black pictures all the time. The NEF file comes from Nikon D750. We need sequoia update to fix the issue. thanx

This problem appears to have been introduced in the upgrade from Sequoia 15.3 to 15.4 — at least for Canon CR3 images.

Is there a link to which cameras (I assume image formats) now express this issue in 15.4, and which OS version will have the fix ?

I am not seeing this on my mac.

Does it also occur if you do this is in a new user account on the same mac?

If not, then the issue is restricted to your usual account. You could try deleting Finder preferences:

To delete Finder preferences: 1) In Finder, press Command-Shift-G and paste ~/Library/Preferences/com.apple.finder.plist 2) Drag the file to the trash 3) Press Command-Option-Escape to open the Force Quit window. Select Finder in the list, and click Relaunch.

Me too! Well... I did not note this with 15.4, but yesterday I updated our two M1 Macs to 15.4.1. My wife and I are both photographers, and she was browsing in the Finder through a list of recently shot images (CR2 Canon RAW format) and all the thumbnails were black. I checked on my Mac and note exactly the same.

Hope this gets fixed soon, because this has a serious effect on the time we need to find the right file to start developing.

FWIW, You might want to try the free XnView XP

It's certainly possible it will show the RAW thumbnails correctly in Sequoia 15.4.

You're welcome. Whatever the issue is that is introduced in 15.4, it doesn't affect RAW images from all supported cameras.

You're welcome.