Hi there everyone,
Toon Boom is working diligently to support Professional Products on the new Apple® Mac OS® X 10.9 Mavericks. Until further notice, we recommend that you do not upgrade to 10.9 as you may experience degraded performance and other unexpected behavior.
Further updates on Toon Boom software and Mac OS X 10.9 will be provided soon.
The Toon Boom Team
Update: Mavericks is now supported on the Animate Family! Simply download the latest build from your User Account