I got some feedback from a user that my plugin does not show up in Logic 9 and Garage Band 10.3 but works with Ableton Live and passes auval without errors on his system.
I tested the plugin with Logic Pro X myself but was able to reproduce it with Garage Band 10.3 on my own system. Funny enough, I got a mail from another customer last week telling me that the plugin works great in Garage Band – he didn’t specify a version though, it’s possible that it was running under an older version of garage band.
Does this ring a bell to someone? The plugin is mono in/out only, is it possible that recent versions of Garage Band don’t accept mono-only AU plugins for some reasons?