MainStage 3.1.1 still outputs an audio pop
MainStage 3.1.1 still outputs an audio pop when switching between certain patches when using I/O plugin and external hardware. That's my case. That didn't happen when I used version 3.0.3 so I had to downgrade my system back to that version.
iMac (21.5-inch, Late 2012), OS X Mavericks (10.9.5)