Audion Unit v3 is very painful with regularly old versions of a plugin still visible in oval but also in AULab or DAWs.
I don’t think there is an easy when to clean whatever cache there is (it’s not in ~/Library/Caches), but I noticed even worse behavior with the 11.1 SDK.
Typically auval passes properly (it sometimes decides that passes don’t work and a rebuild after forcing this crazy cache thingy to flush works again, for whatever reason), but importing the plugin anywhere would break, when the VST3 would work like a charm.
Any tips on how to improve this? Or does everyone face the horrible Apple music and cross their fingers, hoping that it will magically work?