Use NS1 in series with a traditional gate.
Cause: Waves Hell (conflicting versions).
Fix: Run the "Waves Cleaner" utility. You must remove all Waves registry plists:
~/Library/Preferences/com.waves*
/Library/Preferences/Waves Preferences/ waves ns1 noise suppressor v9135 mac osxxdb
If you have an older installer file named something like Waves_NS1_v9135.dmg, follow these steps. Use NS1 in series with a traditional gate
You cannot run V9 plugins alongside V12+ plugins easily. The Waves Central framework V10+ overwrites the shell binaries that V9 relies on. If you have modern Waves plugins installed, you must uninstall them entirely before proceeding with v9135. Cause: Waves Hell (conflicting versions)
This is the most critical section for you. Running v9135 on a new Mac is like trying to fit a square peg in a round hole. Here is the hard truth about compatibility.
For v9135, you need the specific .dmg file. Waves does not host these publicly anymore. If you have the file: