Hi tblair,
Thanks for bringing this to our attention.
I’ve just gotten word back from Yamaha who have confirmed that the AD8HR is still very much in production. We have now updated the libraries and the AD8HR symbols can now be found under Yamaha | Interfaces. The changes can be seen immediately in the online libraries (will require ersonName>StardrawersonName> to be restarted) although you should perform a live update to synchronize your offline libraries.
The ‘weird characters’ is the electronic symbol for an A/D converter.
I hope this helps.
Regards
Kevin Harrison