Logic Pro 9 keeps crashing when I try to save in macOS Sierra.

I was having the same problem after doing a hard disk wipe and a fresh OS install. Can confirm that disabling iCloud Drive resolves the issue (running Logic in both 32-bit mode and 64-bit mode, so far as I can tell). The program would crash whenever I would try to save, save as, or load an effect plug-in preset or whenever I created a new audio channel with Record Enable set to 'on' as well. Switch iCloud Drive off (not all of iCloud, just the drive portion), and it should be smooth sailing.

Cheers!

I do find this to be a very strange, odd issue. On the surface at least, iCloud Drive functionality did not change in Sierra. The sidebar in finder is the same and all of the workflows did not change (on the 'surface' at least, again). So I wonder is it something that they could easily fix, something they deliberately did or... ? Now with another macOS update today - is there a chance the thing might be fixed and back on a track?

Also, it seems like other apps are not affected at all and in Logic 9 it's purely a finder integration thing, nothing else. Because it just affects commands that 'call' finder, like save as, bounce, etc.

Great news everybody! Internet seems silent about the issue... Found it occasionally by launching the wrong app. After macOS 10.12.4 update, Logic Pro 9 Works again!!! I've tested on two of my laptops and will attempt installing new OS on main Mac pro with backup drive off (so nothing gets overwritten) for testing. But I have a feeling that two machines did not "just change minds", looks like Apple fixed something in the OS!!!:)

Everyone running Logic 9 is having this under Sierra.

Logic 9 hasn't been supported by Apple for years and it was only 'luck' that it worked after 10.9.x.

Your ONLY solution right now is to roll back the OS using your backup. I wouldn't expect Logic 9 to run under Sierra ever. I'm surprised it worked up until now.

Well, Logic X isn't without it's issues with Sierra. Let alone all the 3rd party plug-ins and audio device drivers that are not yet compatible.

I know this sounds all a bit doom and gloom but it's always the same when a new OS comes out. Get a drive to do a full backup, you'll thank yourself a million times over.

Does anyone know if there will be a solution to this ever? Mine worked until mavericks so i will be taking time to delete my drive and reinstall everything needed simply because I use this for work and have a personal hate for logic 9 haha.

you can save all your files in a external drive then reinstall from sierra in recovery to lion or the earliest OS, install logic 9 and all needed plug ins then update to el captain. I had some problems there but not many that will be the latest OS you can go into with 9 until further notice.

Apple has dropped Logic 9, nothing has been done with it for years, nothing will ever be done with it. No, there never will be a solution, it is a dead app, period. Get Logic Pro X, learn it, it's fantastic.

New OS upgrades, any platform, require (especially professionals) you wait until your apps and plugins have been updated for that OS version. Do NOT ever upgrade your OS until that happens. Apple will have updates soon, as they always have shortly after an upgrade. Couple for few weeks, it'll be fine.

LPX on EC was very stable and pleasant.

Wise words BenB

Though I am not sure this is the case regarding the latest version of Logic and the latest OS, I am sure this will work flawlessly , as Logic is Apples own product.

Though, interfaces and other software, plug ins etc, thats a different story, you do need to check all the manufactures sites for compatibility.

To fix Logic Pro 9 crash disable iCloud drive

Are we sure this works haha

Sent from my iPhone