I can say that for me sometimes logic will not crush, but most of the time it will. Also its not only retrologue2 but every Steinberg vst. Logic crush if I try to open pad shop pro… halion sonic… I have both logic and Cubase on my mac. I spent a lot of money on Cubase and the vsts. I am thinking to stop using Cubase and start using only logic because Steinberg zero support. I like their products, but when it comes to support they are acting like an outdated corporation.