Preview app not working properly in SL

Check if this is only with old/existing images, or if it works the same way with new images just brought in...other users are reporting similar glitches.

Try opening the Preview app in 32 bit. It has worked for me.

Exactly as tatsquare has described. Hopefully Apple will issue a patch in the coming weeks so that this fix is no longer necessary.

Well, I have a strange bug with Preview as well.

I have trouble when double-clicking several .jpgs. I tried opening 18 and only 9 opened in the main window and side-bar. I then double-clicked the same images and it opened 10, then again 11 opened, and so on up to 18.

Sometimes it will open some of the selected images in one window and open a another one in a different window... and not even all of the images.

Tried in both 64 and 32 bit mode.

This app has some crazy issues.

Brand new MacBook Pro with 4gb Ram 10.6.1

Skinny Moo wrote:
Well, I have a strange bug with Preview as well.

I have trouble when double-clicking several .jpgs. I tried opening 18 and only 9 opened in the main window and side-bar. I then double-clicked the same images and it opened 10, then again 11 opened, and so on up to 18.
...

This strange behaviour isn't limited to preview however, the same 'some open others don't' occurs with Photoshop CS4 and with the image viewer 'Viewit' by Hexcat.

If I understand you correctly, trying to open a stack of images initiated via the highlighted images directly, some might open, but others will not. Initiating the open command again from the same highlighted stack (all of them once again), a few more will open, and so on until all highlighted images eventually open given N attempts to open all of them.

Its like a roadblock occurs somewhere between the finder and the app trying to open the files, but the user gets no message about it other than a lack of doing what its told.

Indeed.
I'd first think it's a RAM/Memory issue, but the images average around 212K and I have 4GB installed. So, that can't be the issue. Unless 10.6.1 is having trouble allocating the RAM to the application.

I have the exact same problem on my Mac Mini. Also tried 32 bit and 64 bit mode to no avail.

Try this work-around until Apple does something about this.

1. Create an alias of the preview.app, and place it on your dock.
2. Click on the preview.app alias.
3. In the preview.app menu bar click on File, then click on Open.
4. Locate your stack of photos using the new finder window that just opened, and select all the ones you want, then click the Open button located in the bottom right of the window.

The above works for me in both 32 bit and 64 bit.

This really is an annoying way to open photos, so lets hope Apple comes out with a patch soon.

One last thought. Try opening your photos with the Quick Look button that is located at the top of the Finder window, usually located between the View buttons and the Action button. This has worked for me, but I would prefer to use preview.app.

Okay, I know something about this part! I've been told on another forum that Apple is now placing a quarantine flag on files downloaded from the internet, which prevents mass batch picture opening from functioning the way it did in 10.5. It seems like the system refuses to open pictures 2, 3, 4, 5, etc, until it successfully accepts the previous file as valid. Which is why the first attempt to open 1-5 results in 1, the second results in 1 and 2, the third results in 1 and 2 and 3, etc. I don't know if the quarantine flag explanation makes sense or not, but the one work-around I found is this:

Open ALL of the files from the preview application itself. Once you do this, you WILL be able to double-click on those files in the desktop without error, I guess because they're somehow "validated." If you're mass downloading pictures, opening them all once via the Preview menu should then allow you to double-click from the desktop. If, on the other hand, you've just migrated millions of pictures from another computer like me... Well, I'm not sure how to get around that one yet, since there's hundreds of folders.

fluffyemu wrote:
Okay, I know something about this part! I've been told on another forum that Apple is now placing a quarantine flag on files downloaded from the internet, which prevents mass batch picture opening from functioning the way it did in 10.5. It seems like the system refuses to open pictures 2, 3, 4, 5, etc, until it successfully accepts the previous file as valid. Which is why the first attempt to open 1-5 results in 1, the second results in 1 and 2, the third results in 1 and 2 and 3, etc. I don't know if the quarantine flag explanation makes sense or not,

IIRC the .jpg and .jpeg file format was supposed to be almost as safe as the .pdf format. Has something happened to make a .jpg or .jpeg file a threat to the Mac OS?

Back when I was using Windows (bought my first Mac in July 09) I used to subscribe to Fred Langa's Langalist newsletter. Later when he merged his newsletter with Windows Secrets, I subscribed to that newsletter as well. I remember reading in one or both that while it was theoretically possible to infect a .jpeg with malware, nobody had done it yet, and it was probably too difficult for anyone to be bothered with it. Perhaps my memory about this is faulty.

Thanks for the explanation. Not sure if that is a good way to go for Apple (if in fact that is what is happening). Are there any documents to back this up? If indeed this is what is happening, they will get a not so happy, e-mail from me.

Has anyone else experienced this behavior?

Thanks again.

Where is Preview info? I can't find anywhere to be able to select 32 bit. I just keep getting a blank screen with no image but there is one in the sidebar and for the icon on the desktop.
What is going on?