Very serious bug: With a multitimbral instrument plugin, such as Kontakt or one of the EastWest plugins, making the plugin inactive on either the plugin GUI button or on the Inspector button crashes the program. This is repeatable and verifiable. Note: This happened repeatedly creating a 9 part multitimbral instrument (East West instruments can be 9 part multitimbral). I just checked it with an 8 part instrument and it seems to be OK. May be related to the number of parts. Doesn't happen with single stereo instrument plugins. I would not install this update. I wish I hadn't.