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Logic Pro X not seeing Audio Unit plugins | Time+Space ...
https://help.timespace.com/home/logic-pro-not-seeing-audio-unit-plugins#:~:text=Method%201%3A%20Run%20the%20AU%20Manager%20from%20within,in%20the%20Audio%20Units%20list%20in%20Logic%20Pro.
Bypass, remove, or rescan Audio Units plug-ins in Logic ...
https://support.apple.com/en-us/HT201199
If you only use MainStage and don't have Logic Pro installed, manually remove files to rescan all Audio Units in MainStage: In the Finder, press and hold the Option key, then choose Go > Library. In the Finder window that opens, locate the AudioUnitCache folder in the Caches folder. Move the files from AudioUnitCache folder to the Desktop.
Logic Pro X crashes on Audio Unit scan - Apple Community
https://discussions.apple.com/thread/250446659
Question: Q:Logic Pro X crashes on Audio Unit scan. Logic Pro X crashes on Audio Unit scan. Logic Pro X 10.4.5 on Mac OS X 10.14.5 (18F132) crashes every single time when I try to open it. It says "Scanning Audio Units (finalized 0 of 3)" hangs for a few seconds and then crashes. Does anybody have a solution to this?
Logic Pro X - Always rescans audio units on startup ...
https://logic-users-group.com/threads/always-rescans-audio-units-on-startup.10773/
1.Copy All files from Macintosh HD /Library/Audio/Plug-Ins/Components/. 2.Paste to Macintosh HD/Users/your user name/Library/Audio/Plug-Ins/Components/. 3.Click on Replace All. Next time when you start logic it will scan all audio units only once and the scan wont reoccur in every subsequent startup.
Logic Pro X scanning audio units on startup - Logic Pro Help
https://www.logicprohelp.com/forum/viewtopic.php?t=102072
The AudioUnitCache folder is placed in Macintosh HD / Users / [you username] / Library / Caches. I found out that some script was regularly deleting this cache. My solution was: wait for the Logic Pro scanning process to be completed on startup. Then, locate the folder, copy and paste it somewhere else (I placed it in my desktop).
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