2.6.6 optimizing system for audio hang up

Each time I start this new beta version Audirvana gets stuck while the message in the subject line appears. When I select another song it begins to play and then a new message appears: “Needs Install… System Optimizer”. I go through the motions to install it but it appears not to install as I have had to repeat this process a number of times. I can not get it to install.

Any advice?

2.6.6 ?
I think if i remember you have to trash a preference file that have been corrupted…
In your Hard Disk… Library… LaunchDaemons Folder… com.audirvana.Audirvana-Plus.plist
quit A+ just to be sure and relaunch, should work.