DON’T install QT 7.4 if you use after effects

[Susan Bridge]

Upgrade to 7.4.1 it solved the problem for me, it certainly stressed me out last week for the same reason!

[Mark Cookman]

So this thread died out…. can anyone else please confirm that QT 7.4.1 on OS X is safe with AE8.

[Byron Sletten]

After Effect has major problems if you upgrade QT. To be safe, stay with 7.31 (maybe 7.4) I have had problems rendering and recently, this week even booting AE. My QT was upgraded by someone in our shop trying to be kind. If you have upgraded and are experiencing problems do this:

1. download QT 7.31 package
2. download Pacifist software.
3. Use Pacifist to install (basically overwrite) QT 7.5 or whatever you have upgraded to.
4. Contact Apple and bitch them out.

[Sharon Lawler]

This sounded promising—I tried that, but still am getting red exclamation marks on all my drives. Message “you can’t install QT on this volume- is downgrade”

Was there another step after this?

Sharon Lawler
http://www.picturethisvideo.net

[Massimo Chiti]

Hello from Italy!

Remove the Hear plugin on OSX
/Library/Audio/Plug-Ins/HAL/Hear.plugin
Now Af and Prm work fine. No more “Initializing Mediacore..

best regards
massimo