Hello, I just upgraded to a new Macbook, and unfortunately, I have lost progress in many projects as Ableton won´t read the plug-in 
And apparently, no proper solution has been given. Does anyone know how to make it work?
I have all the components in the respective folders, and Ableton only reads the AU component…
Have you done a manual rescan for ableton? I thought this was solved but I could be mistaken sorry 
By “manual rescan” you mean selecting a custom folder? Yes, I have tried absolutely everything, and nothing makes the VST3 component appear on Ableton
Dang 
Tried reinstall too ya?
Yes, I tried installing an older version, and it did not work. Then I installed that and installed the newest once again, and still no VST3 component visible in Ableton (even though I can see the component file in the correct VST3 folder in my computer) 
You coukd also try re-install ing ableton most recent update?
Sounds just unlucky though