heyheymrgray Author

Level 1

4 points

Logic Pro X - All Third Party AU Instruments Disable

I’m having the weirdest issue!

Versions:

Logic Pro X (version 11.2)

OS (15.5)

Serum, NI, UA, Vital, etc (up to date)

The problem:

When I switch my audio driver (output or input or both) all my third party AU Instruments disable / gray out. Third party plugins don’t, just instruments. I can reopen the third party instrument afterwards, but obviously with any changes lost.

What I’ve tried:

restart comp, rescan/reset plugins, test new projects create a new user profile, reset preferences, reset logic settings, reset plist, deleted Logic and reinstalled it

What is this vex??

MacBook Pro 16″

Posted on Jun 12, 2025 02:51 PM

Top-ranking reply

lowellj

Level 1

31 points

Posted on Jun 14, 2025 06:50 PM

I am also having the same issue. Third party VI's will not reload after updating to Logic 11.2. Please don't ask the simple stuff because it's all been tried. It is a bug. The VIs included as part of Logic reload without issue. To be 100% clear:

Start new project
Add software instrument track
Add third party VI to track...there are no issues, VI works as expected
Save project
Quit Logic 11.2
Reopen Logic 11.2
Reopen Project
Third party VI name appears but is grayed out
If you choose the plugin again from the plugin manager it loads, but of course it is now at the default patch. If you happened to rename the region and don't remember the patch name, you're screwed.
Any existing projects with third party VIs will be ruined if you open them and save them. Try remembering a patch name from a year ago...your screwed.

It's a total disaster for my studio. There does not appear to be a clean way to revert to 11.1.2. If someone can give me a foolproof way to do that, I'd be grateful.

MacBook Pro

M3 Max

48GB

8TB

macOS 15.5

Logic Pro 11.2

View in context

Similar questions

24 replies

lowellj

Level 1

31 points

Jul 4, 2025 08:18 AM in response to dthrilla_chi

I can also report that upgrading to 11.2.1 has apparently fixed the issue, although until I do more testing I'm not declaring a complete fix but, so far, it's looking good.

Steps I've taken so far: Update Logic to 11.2.1, restart Mac, install and activate Waves Diamond package (which when installed in 11.2 would cause the issue) via Waves Central, open Logic (scans plugins), create new project, load third party VI on software instrument track, save project, quit Logic, reopen Logic, reopen project. The third party VI (in this case NI Massive) is active and works.

EddieGrey

Level 4

2,000 points

Jun 12, 2025 05:54 PM in response to heyheymrgray

Got it. Have you tried opening with Rosetta? Just curious.

EddieGrey

Level 4

2,000 points

Jun 12, 2025 03:20 PM in response to EddieGrey

Can you also try restarting your computer? Some folks never turn off their systems and it can cause issues. Can you also try this on a BRAND NEW session. Thank you.

heyheymrgray Author

Level 1

4 points

Jun 12, 2025 04:12 PM in response to EddieGrey

Eddie... I don't know what you're not understanding. I was pretty clear that I did restart my computer and try it on a brand new session. thank you for trying to help though.

heyheymrgray Author

Level 1

4 points

Jun 13, 2025 02:04 PM in response to EddieGrey

Tried in Rosetta as well yes, I'll update my original list with Rosetta since I forgot to add it. Thanks.

heyheymrgray Author

Level 1

4 points

Jun 13, 2025 02:05 PM in response to yoyoBen

No changes other than updating to the latest version of Logic (11.2)

Johne154

Level 2

303 points

Jun 14, 2025 07:58 PM in response to EddieGrey

Okay, I'll give that a try. Thanks, Eddie!

heyheymrgray Author

Level 1

4 points

Jun 16, 2025 10:41 PM in response to lowellj

Interesting. I have Waves Ultimate - so it must be their subscription packages?

heyheymrgray Author

Level 1

4 points

Jul 7, 2025 02:42 PM in response to heyheymrgray

Nothing worked until the devs fixed it in the latest update. To anyone who has this problem, Version 11.2.1 resolved it for me.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Logic Pro X - All Third Party AU Instruments Disable