My 2012 MacBook Pro has came up with a new problem. I sometimes do a lot of music processing in Garageband. Usually the process is somewhat uneventful but lately I have encountered a problem that stops the process cold. After processing music in garageband, I hit the 'share' to send it to iTunes and it goes through 'mix down', 'normalizing', and when it appears that it is almost done with 'converting', the blue candy stripe progress bar stays there, the whole process freezes at that point, and the mbp has to be powered off manually. I have down this process thousands of times and am not doing it any differently. I have repaired disc permissions many times. I have done the full scan with Onyx and Tech Tool Pro as well as any maintenance and clean up that is available. I have done all software updates. I have checked all preferences. I don't know where else to look. I need help.
OSX 10.8.5
iTunes 12.3.2.35
Garageband 6.0.5
arc
OSX 10.8.5
iTunes 12.3.2.35
Garageband 6.0.5
arc