Third party plugins stopped working after latest garageband update

anyone one knows how to revert to 10.2? i have sessions that are still incomplete.

The easiest way would be to restore your Mac from the last Time Machine backup you made before you updated to GarageBand 10.3.

It might suffice to restore only the GarageBand 10.2 Application from the backup, but then you will have to restore the sound library as well after reverting to 10.2 using the menu "GarageBand > Sound Library > Restore Sound Library".

Ok so I went ahead and called Apple support. They did not know this issue existed. I spoke to 2 different tech support guys and they had me do a lot of troubleshooting on my end like updating permissions, deleting cache files, all kinds of stuff. They both started off trying to pass it off saying it's not an Apple/Garageband issue and I had tried to refer them to this very thread saying it seems to be directly related to the update and there's no way that all in one day all the 3rd party plug ins are out of date.

Eventually I just asked the guy if he can open Garageband and try a third party plug in. He could not. That's when the tone changed and he said he's getting all the documentation together to submit this to the engineers as it seems to be a universal problem.

So, it was ok to be the "guinea pig" just so he can say here's all the steps we took and still no resolution, and hopefully there will be a follow up update soon. I would maybe suggest you guys also call and let them know you're having the same issue. While we have this thread going on this page, they said I was the first they're hearing of it and they have nothing notated in their internal system until now.

I sent an email directly to Support 2 days ago. No response. Kind of bizarre - someone at Apple created the update, but they seem disconnected from support? Weird.

Per this thread, I realized that I had a CCC backup of my files from several months back. I opened GB from there and it not only worked, but the 3rd party plugs showed up and worked (w/o me reloading anything). As a lifelong long windows guy, I didnt expect this to work, but I copied the app file from the CCC backup and pasted it to my desktop and it seems to work as normal.

I am only using the Melodyne Plug-in, and that is still running.

Are all plug-ins that you are using 64-bit audio Units? HAve you cheked on the manufacturer's sites for updates?

Restoring Garageband app to 10.2 from Time Machine backup worked like a charm!

Reverting to version 10.2.0 worked for me. Thank God for Time Machine.

I used time machine and I restore GB ..... it’s the only solution for the moment

Update (fix) 10.3.1 now available, hope it works....

Yep, everything 3rd party stopped working after update. Very annoying. It reads that they're there, but won't let me use them, says contact the VST maker to update their plugin.

That's gonna be real annoying to hear if you're a developer, Apple.

Which plug-ins do no longer work? Do you get an error message?

(No Updates == No Updates on vendors sides available)

I immediately had this problem too. I get an error message from the Townsend Microphone plugin and several others. The Two Note workaround plugin is also not recognized. I deleted several of the error plugins, reloaded them and rescanned all plugins. Still get the error message. Very inconvenient.

As a relatively new Apple user (only got an IMAC to use Garageband) I am extremely disappointed. This is so fundamental that it is like an update to WORD where the program cant recognize certain keys on your keyboard!

Have the same problem too, everything was working great with Garageband 10.2.

can't believe they screwed this up and made everything inconvenient again after the last time.

anyone one knows how to revert to 10.2? i have sessions that are still incomplete.

Dude, Apple is totally bustin' my bawls on this one. I use 3rd party plug ins quite a lot and am in the middle of a big *** project and this is a big inconvenience. Hopefully they will have an update soon.