Currently the projucer fails to sign plugins correctly. As of Juce 7.0.8 this is the order of operations:
- clean the build folders
- build the project to the debug/release
- copy from the debug/releaes to the destination folders (~/Library/Audio/Plug-Ins/…)
- code sign the debug/release folder
So you end up with non-signed plugins in the plugin folders, so they can’t be released to customers.