So I contacted Arturia Support, and literally the first thing they asked me to try worked.
For reference, I had the repeated helper tool problem. Here's what they sent me.
"Here are some suggestions which should help sort these issues out.
First, could you please confirm me when following the steps below what is the result obtained ?
- Open Launchpad -> Applications -> Utilities -> Terminal and paste the following command:
sudo launchctl load -w /Library/LaunchDaemons/com.Arturia.InstallHelper.plist
- Once done, press the "Enter" key, enter your "User account" password, and then press the "Enter" key again.
Please note that your password is not shown on the screen. It is absolutely normal. Please make sure that you enter it correctly.
- Restart your Mac and from there give it another try.
In case this still persists, you can also try these steps:
- Close the Arturia Software Center and then go to the following folder:
/Library/PrivilegedHelperTools
- Then delete the following files:
SEE PICTURE 1
Once done, open the Arturia Software Center and then give it another try.
Make sure also if needed to try deleting the Arturia Software Center preferences file, to do so:
- Go to this folder : /Library/Arturia/Arturia Software Center/user
- Delete the "asc.pref" file
Once it's done, please try again.
If none of these suggestions have helped, i would suggest you for now as a temporary workaround to disable the "Silent install" option in the Arturia Software Center preferences which should allow you to install your software (but will require you for each install to go through the install steps manually which isn't comfortable indeed):
SEE PICTURE 2
Keep me informed if this solves your issue !
Best regards,
Léo - Arturia Support"