No preview for file thumbnails • Mojave

Nope, not related to this.

In my case, it may be related to thumbnails of photos that were saved from On1 app. I know many people think it has to do with Sketch for instance. But I do not have Sketch. I am going to try to resave my .psd files that were saved from On1 and see if the problem disappears when they are saved from Photoshop. If that is the problem, it will take me a long time to resave all my On1 .psd files!

So hope Apple comes up with a fix for this Mojave problem soon.

I have the same exact problem, in fact it's strange because some thumbnails show preview and others don't within the folder and some when clicking on some thumbnails you get a preview of the image while others just give you a large icon view. This is so frustrating.

do we have any known work arounds I use my system as a photo editing sweet and I'm losing so much time over this. It inconsistently is showing some images in the previews / thumbnails amongst others with just the goto holding jpg thumbnail. I don't run sketch etc on my system so its not that causing it.

I have this problem too. I am a photographer and work a lot with PSDs, TIFFs and other image files and they all have the same problem.

Tried restarting, safe mode, clean PRAM, NVRAM, etc, created a new account, no dice.

I don't have Sketch installed, so in my case that's not the reason.

Waited on Mojave for a week just in case it was rebuilding the icons. Did a clean install with formatting the HD. Did a clean install and then installed Photoshop CC 2018 instead of 2019. Nothing worked. Spent hours with Apple on the phone with no results either. After a couple of weeks, went back to Sierra which is where I should have stayed. The only pain in the neck is once again having to click to ignore the "Update to Mojave" that pops up almost every day.

It is Sketch V51.

This issue has been resolved with the release of Sketch v52 update.

Just install the update and restar the mac or just delete Sketch and restar.

Thank you! Worked for me!

What is Sketch? I do not think I have that app...

It starts happening when I try to preview from a DropBox folder, then it's Finder-wide. Very annoying.

This is exactly the same for me !

I have latest Mojave installed AND latest Sketch 52.5 installed and the preview issue is still there. So it wasn't Sketch in my case.

I have the same problem.

I read some articles saying that if you reboot in Safe Mode that fixes the issue and indeed it does, after rebooting post safe-mode all the files in my desktop showed thumnail preview, but I noticed when I created new files they didn't render any thumbnail preview and suddenly all files show generic icons as yours.

Apple please advise on this.

Instructions for Safe Mode:

Shut down the mac

Turn on and hold down shift until the system boots (takes a little longer)

By the way... Happens on my Mac Pro and on my MacBook Pro. Happens on internal and external hard drives. Apparently the only place that it doesn't happen is on the Desktop (but happens on the same hard drive if it's on a folder outside the Desktop.