why are image thumbnails not displaying in finder since updating to sequoia on my m1 MacBook pro

VikingOSX wrote:

In that Finder Window that you just provided a screenshot, press cmd+J to open the Show View Options panel. Is the Show icon preview selected, and if not, by selecting it do the generic icons change to their respective image?

When those PNGs were produced, was there an option to include an icon image that may have been overlooked?

Yes, the option to "show icon preview" is selected on my Mac. This affects - some, not all - image files, including png, jpgs and raw formats and I'm not using any third party viewers. I reported the issue to Product Feedback - Apple

zootsuit711 wrote:

I’ve read most of these posts. Everyone is talking about the recent upgrade/update to Sequoia. My 2015 MacBook is running on Monterey 12.7.6, but in the last week or so, the thumbnail images disappeared. So, what would cause that when I haven’t had any updates? I’ve tried JPG, TIF, PSD, nothing works.

Likely a different problem versus Sequoia, so maybe best for you to open a new posting in the Monterey Discussion area. It could be a shared cause but seems unlikely.

Unfortunately not. I am updated and it's not fixed. In fact, I have new images that are solid white thumbnails now. If I click on the image and have the preview sidebar open it shows the image in the sidebar, but not the thumb.

Most of them with issues (if not all of them) are on the local HDD and not on external drives. So it's definitely a localized system issue.

Not a solution. Images are showing previews and thumbnails while others do not. For instance, I take 10 pictures on my iPhone and put them on the Mac.... out of those 10 images 5 or more will not have thumbnails visible. The photos have no difference in settings from the phone, etc. My issue is not just with .PNG files, but .HEIC, .JPG, and all of them are from my phone.

It only is an issue when the images are on my actual Mac hard drive. If I move the images that do not show a thumbnail to an external drive, the thumbnail works just fine. If I move them back to the system's internal drive, the thumbnails don't work again for those same images.

If I open them in Preview or any other software and save them or use the 'convert image' option in Finder, the thumbnails work, but of course the metadata is no longer 100% valid since it's a new file creation (from the system and not the original source).

I also noticed the icon resizing workaround. BTW, Automator has a built-in Action to change the icon size in Folder Views (see below). This can be used in an Automator workflow to change multiple (or even all) folders.

- Pie Lover

I’m having the same problem of appearing / disappearing icon previews for a folder of jpgs all taken on my iPhone. All of the files were saved to iCloud Drive via Share > Files from the iOS Photos app. I’m viewing them on my computer in the same iCloud folder where I saved them originally.

The image preview shows in Finder > Preview and Get Info regardless of whether it shows in the main Finder window. All of the image previews show when View Options > Icon Size is set to the smallest size and the biggest size. To experiment, I started at the smallest size (16x16) and increased the size by 1-2 increments. Between each increment change, I scrolled the full length of folder to verify if there were any missing previews. All previews showed up to 80x80. At 84x84, the original behavior started: previews show and disappear on different icons at seemingly random intervals.

The weirdest part IMO is that the behavior occurs in a 3rd party Finder supplement app called Path Finder.

There is no pattern that I can discern in terms of original file name vs. renamed files nor .jpg vs. .JPG vs. .jpeg.

In addition to the icon preview, Item Info also displays inconsistently and not on the same icons as the preview (see below).

Apple M1 Max

Sequoia 15.2

Now that's strange. Rotated 4 times and no luck. Then rotated once again and they all appeared but were upside down so rotated again and all the thumbnails that were originally blank became blank again. Now that tells me definitively that there is a bug in the code associated with the flag associated with one of the rotation positions. Rotate it and the flag is Ok, rotate it back and the old flag is still there. This is an Apple program bug!!

Anyone know the process for inveigling (by flattery) Apple to fix the bug?

I'm running 15.3.2 and the problem is still here. No psd image thumbnails. I drag them to the desktop and 99% of the times they show properly. When I drag them back to their folder they show ok as long as the folder in open. If I close and reopen the folder the preview is gone......

Since I’m having the same problem, MacBook Pro m3 with 15.3.2 and last version of photoshop, are we sure it’s not adobe’s problem the icon preview issue? I can’t believe that apple keeps ignoring thousands of users without solving it

Thanks but this does not work for me. RAW images shot with my Canon R1 have the generic "CR3" placeholder icon. I tried doing a "Get Info" on one of the photos but where the image should be is just a black box. Fortunately I can see the images in Adobe Lightroom Classic (my primary photo editing program) and Photoshop.

Hopefully I will be able to see video that I shot with this camera this past weekend. I need to edit it in iMovie.

Jan

I'm running Sequoia 15.3.2 on a MBP M4 Max 128Gb and the problem still persists. Tried all the supposed solutions with no success. 'Show icon preview' is ticked as you can see in the screenshot. Reported the issue to Apple but no response... and still no solution. Pretty annoying (understatement) when one has forked out £7k for a laptop to find that you cannot view thousands of photos because the thumbnails are not displaying!

For me, a few files show the thumbnail when the icon is fairly small, but even those don't show a thumbnail if the icon is anything bigger.

How can you tell when the slider has them at 192x192? I tried every step of the slider, and no thumbnail appears at larger sizes.

Spot on! Complete stand-still, can't do any work. They send me pages of useless info like 'How to clear your cache" and 'How to turn thumbnails on in your finder'...quite honestly it's insulting. They are going to loose people for sure if they don't take this seriously and have some respect for people trying to get work done!

Right now, I’m honestly just tired of it. Even with my MacBook M3 Pro, there are still issues with every image file—JPEG, PSD, TIFF, RAW. It’s been like this for ages, and I don’t think Apple cares enough to fix it. They just let users keep dealing with it, over and over.

That is actually the first thing that has worked - not that one can really work on folders having to open and save every file that is not showing when you've got thousands of photos to go through, but, it does work, well done! This is so bloody annoying when Apple charges you an arm and a leg for everything.