Why is my Preview app Sidebar not refreshing?

Same here:

After deleting a photo in Preview it stil… - Apple Community (unsolved, closed)

After Deleting a Photo in Preview it stil… - Apple Community (unsolved, closed)

Finder Preview thumbnails no correct afte… - Apple Community (unsolved, closed)

Describing my workflow, in the hope that it will help to get this fixed.

• I'm out taking pictures
• I copy them from the memory card to a folder on my Mac desktop
• I open the folder, select all photos, open them in Preview
• In the sidebar I see the thumbnails, next to it the bigger version of the photo my cursor is on in the thumbnail column
• The photos I don't want to keep I a) delete in the sidebar, which b) also deletes the image from the folder
• My cursor automatically lands on the next thumbnail, and the next image displays

What is broken now is a)

The image gets deleted, but the thumbnail doesn't. My cursor is now on the thumbnail of the deleted image, the image displayed in big is the next image.

This alone would be wrong, but I wouldn't mind just moving my cursor one image down.

But: moving the cursor to the next thumbnail also loads the next image = the thumbnail is not the same as the image.

So I can't go on with my routine of deleting the superfluous images in Preview.

I have to close Preview and start again from the third point in the bullet list.

Which wouldn't be so bad if there was an alternative with the same basic function – but I haven't found one yet.

I use the Preview app a lot to open files of multiple images,

Verify your software is up to date…

The current stable release of Sequoia including bug fixes, security updates is macOS 15.5

Keep your Mac up to date - Apple Support

Keep your Mac up to date - Apple Support

To be proactive you can file a bug report / submit your Apple Feedback here: Product Feedback - Apple

I would recommend changing the Preview >Settings if you have an issue with 'groups'

Alternative to Preview application

View and edit files with Quick Look on Mac

Quick Look offers a fast, full-size preview of nearly any kind of file without opening the file

Yes, this!

After deleting a photo in Preview it stil… - Apple Community

> To be proactive you can file a bug report / submit your Apple Feedback here: Product Feedback - Apple

I did, thank you for the link. Preview is not on the list, so I filed it under MacBook Pro.

manuschwendener.ch wrote:

Same here:

Sorry I can not reproduce the issue on macOS 15.5

To trouble shoot further you can:

 —A SafeBoot Start up your Mac in safe mode - Apple Support will sort many anomalies

Does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, third party system modifications and system accelerations are disabled temporarily.

Login and test. Reboot  as normal and test.  Caches get rebuilt automatically.

This test will tell you if third party interference; most extensions etc are not loaded in safe boot mode. 

—Test issue in another user (or guest user) account Change Users & Groups settings on Mac - Apple Support

 This will tell you if it a universal issue or isolated to your user/admin account. 

***wireless keyboard with rechargeable batteries— connect the charging cable, this will make the wired keyboard successful Safe Boot your Mac.

unplug all non-essential  peripherals when testing

Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus

all known to cause issues on the macOS

> A SafeBoot Start up your Mac in safe mode - Apple Support will sort many anomalies

Wow, that seems to have solved it for me!

The bug was still there in safe mode, but starting up normally after that I can now work again as I used to.

This is amazing, thank you very much!

I shall leave with this or you can follow another posting were they have not had issues in Preview

They are known ( to me ) to be somewhat of an expert in Images, Images Creations and all things related to images

BlueberryiMac wrote:

Any ideas of how to fix it, please?

I haven't had the problem with Preview however, I would suggest you take a look at the much more powerful & free XnView MP

> I just want Preview to work properly, because it does exactly what I need.

And has worked for many years without problems for me.

> I would recommend changing the Preview >Settings if you have an issue with 'groups'

> "Open each file in its own window"

That removes the sidebar completely, which is no help.