Looks like this also applies to SSD4 and Trigger.G wrote:Slate Digital
https://slatedigital.zendesk.com/hc/en- ... patibility
Slate Digital Plugins have been tested on OS X 10.11 (El Capitan) and we recommend to not upgrade your system.
We have confirmed a crash with the Virtual Mix Rack during the AU validation in Logic. We are currently working on this issue and we will keep you updated with compatibility moving forward.