I thought I’d add some info in case it helps.
It can be easier to debug AUv3 on Intel, you have a spare Intel Mac. There is no need to deal with SIP for starters!
How to debug your AUv3 on Intel Mac (verified just now with macOS 15.3.1)
Switch to your AUv3 target/project, set one or more breakpoints in your AUv3
Project schema:
- set Executable to Logic Pro (for example)
- set Wait for the Executable to be launched
To debug: - Run Logic Pro (or whatever you’re testing under)
- review that your breakpoints are still active (some might be de-activated)
- Open a Logic project that uses your AUv3
All nice and easy!
Best wishes, Pete