Hi there.
After the new update of GarageBand (June 21st, 2018) to version 10.3.0, I no longer can connect AnalogLab as an instrument from within GarageBand. After a restart of the computer and trying to connect to AnalogLab, GarageBand crashes. Restarting GarageBand again, and trying to connect I get the message that AnalogLab needs to be updated...
Doing the same thing in Logic Pro X works fine. AnalogLab instruments connect fine.
I am running macOS High Sierra 10.13.5, GarageBand 10.3.0, Logic Pro X 10.4.1 and AnalogLab 3.1.0.1391.
Perhaps I am missing something?