I’m using logic pro x 10.6.0 with gold bundle waves. When i pull up my Studiorack and try to load a plugin it would say “no plugin available” and when i try to use different presets, certain slots would be listed with different plugins but are not enabled unless its parallel split or multi-split. tried uninstalling and then reinstalling all V12 plugins including StudioRack and nothing. I tried different versions (v10,v11) and nothing. Please help
Hi @antkings2010 welcome to the Waves Forum 
Note that Logic Pro X 10.6 is not yet Officially Supported with V12 plug-ins.
We are working on qualifying V12 plug-ins to support that version, however, I don’t have an ETA at the moment.
As we are already testing Logic Pro X 10.6.1, I suggest updating Logic and reinstalling StudioRack V12 with all the latest updates and see if the issue persists.
If the issue is not solved, please contact our TechSupport team to advise further.