P: Locks up on MacOS X 10.11.3

Any news? I'm perfectly happy with reformatting my hard disk and restoring it with a Time Machine backup, but only if there's a real chance that this solves the problem...

Thanks. One thing I have tried in the meantime is logging into the same machine using a different account. Lightroom does work on that account as far as I can see. Of course I could only test it by creating a new library, but that worked and I could import some images. I also checked the disk with Disk Utility, which didn't report any errors. My Mac has a Fusion drive however, so perhaps Lightroom uses the SSD part with my main user account (because I use it every day) and not when logged in as another user (because that is a 'test' account that I normally don't use).

That looks like it is waiting on an OS routine to return -- which might indicate a problem with your disk.
The Lightroom team might be able to narrow down the problem further once they can resolve the function names from the stack.

Any news? I believe there is another report about the same problem... BTW, Lightroom CC2015.3 runs fine on the same system, so it isn't a problem of permissions of folders that Lightroom uses.

And of course I also tried deleting the preferences file in user/library/preferences/. Doesn't solve the problem either.

My GPU is a NDIVIA GeForce GT 650M, but GPU acceleration has been turned off all this time already, because I find it slows down spot healing considerably. Other things I've already tried are using a different catalog, and disabling all third party plug-ins. Doesn't help either.

Here's the log: https://www.dropbox.com/s/bykzjmd2r6z...

Hi, please do share the report.

Also, could you let me know the details about the Graphics card on your Mac?

Can you try disabling the GPU as suggested here https://helpx.adobe.com/lightroom/kb/... , and let me know if you still see the hang?

Shortly after launch. I'm still in grid mode, I select an image, select another one, hang. I've saved a Console hang report. Let me know if you want me to send it somewhere, or I can publish a link where you can download it.

At what point is it locking up? Launch? Switching to Develop?