Deleting all the text documents in your version of AE found in this folder path \Users\your name\AppData\Roaming\Adobe\After Effects\version (14.0 for me)\Adobe After Effects 14.0 Prefs (Prefs-indep-composition, Prefs-indep-general, Prefs-indep-output, Prefs-indep-render, Prefs-paint, and Prefs-text), that's what makes it worked for me. Hope it does for you. Also hope that Adobe will stop using us as lab rats for its beta release. Some people's livelihood depends on them, and yet they find a way to mess us up. Too big to fail will not always be. Some will come with better software eventually. In the meantime, continue to eat our cake and be grateful about it.... ... View more

Here's the solution to this "Dolby Codec" mystery for Premiere Pro CC 2015.4 1.Open your project in Premiere Pro. If "Dolby Codec' window shows up, click to install it. 2. Close Premiere Pro (Don't save your project) 3. Open Media Encoder 4. Go to " Edit - preferences - select "Media" 5. Clean up the Media Cache Database. 6. Then, click the "Browse" from the left of "clean" (Media Cache Database). 7. Delete all cache folders (Anywhere Cache, Media Cache, Media Cache Files...) 8. DO NOT CLICK the CLEAN (from 5 above) again. Doing that will recreate the folders in (7 above) 9. Close Media Encoder 10. Open Premiere Pro. And Voila! You should be fine. *If not, you may want to relink the footages). The above works for me. Hope it does for all. ... View more