Audio Hijack Pro goes through rigorous design and testing before it every gets released. However, there sometimes arise issues which can't or won't be worked around, at least not presently. Read on for more information.
AirPort Express And iTunes: Audio Hijack Pro can not hijack audio from iTunes while iTunes is sending audio out to an AirPort Express. To properly hijack iTunes, you must use the Computer output option.
Fast User Switching: Because audio playback can behave in unexpected ways when switched out of an account, Audio Hijack Pro is not supported for use with Fast User Switching.
Effect Editor Windows: Due to conflicts between Cocoa and Carbon, neither Command-W nor Close Window will work on DSP Editor windows. The red 'Close' button must be used.