Thanks—this is a helpful second example that confirms a wider systemic limitation in Logic Pro’s current ARA 2 integration on Apple Silicon.
TL;DR on Synthesizer V + ARA + Logic Pro (Apple Silicon)
Synthesizer V and Synthesizer V Studio Pro are technically Apple Silicon–native.
They support ARA 2 and work natively in other DAWs (e.g., Studio One, Reaper).
In Logic Pro running natively (non-Rosetta), they don’t work via ARA.
Running Logic Pro in Rosetta mode fixes it.
Both Dreamtonics (Synth V devs) and Celemony (Melodyne devs) blame Apple, and… they’re basically right.
What’s Actually Going On
1. Apple’s ARA SDK for Logic is Limited
Apple does not offer a full ARA development kit or open API for Logic Pro.
Only a subset of ARA functions seem to be enabled for third-party developers, and only under very specific architectural conditions (often x86/Rosetta).
2. No Mixed Architecture ARA Support
Logic Pro cannot load Intel ARA plugins when running natively on Apple Silicon.
It also can’t bridge ARA communication between Apple Silicon Logic and Intel-compiled ARA plugins.
Even when the plugin is ARM-native, Apple’s ARA implementation still has unpublished or limited functionality for 3rd parties.
3. Apple Is Prioritizing Other Features
Logic Pro development has been relatively quiet on this front.
Apple likely hasn’t prioritized fixing this niche-but-important compatibility layer—possibly due to how deeply ARA integrates with the DAW’s timeline and data structure.
Who’s Actually Responsible?
Party Claim Truth
Dreamtonics / Celemony “Apple needs to fix Logic’s ARA support” 
True — Apple’s ARA is limited or incomplete on Apple Silicon
Apple “Plugin developers need to update their software” 
Misleading — The plugins are already updated; Apple needs to support native ARA in Logic properly
So: Apple is the blocker here, not Dreamtonics or Celemony.
Current Workaround
Until Apple fixes it:
Right-click Logic Pro > Get Info > check “Open Using Rosetta”
Use ARA plugins as usual (Melodyne, Synth V Pro)
You can still use Apple Silicon plugins—Logic can load both Intel and ARM plugins when in Rosetta mode
No audio quality difference. Slight CPU hit, but Apple Silicon is fast enough that it’s barely noticeable in most sessions.
What You Can Do (User Advocacy)
You’re not alone. Users have been raising this on forums and directly:
Submit feedback to Apple here:
Mention:
“ARA plugins like Synthesizer V and Melodyne don’t work in native Apple Silicon mode. Please enable full ARA support for third-party plugins in Logic’s ARM-native build.”
