I have been using the same basic workflow for the last couple of years with Premiere Pro and AME and after the recent update to CC 2017.1 AME is consistantly freezing part way through encoding.
In Premiere Pro -
I import several 4K clips into my project with a separate audio file
Copy the clips and the audio file into the timeline
Synch the audio to the video
Edit the video, then add adjustments, transitions, watermarks, titles, etc
Set the start and end points for the final video
Save the project
Queue video to open AME
Create three output streams using AME presets
Android Phone 320x240 23.976
Android Phone 640x360 Widescreen 23,976
Android Tablet 1080p 23.976
Start the encoding
Up until the the recent update, I never had issues with this basic workflow. Since the update, AME completely freezes and lock up my computer completely (have to do a hard restart) approx. 1/4 - 1/2 way through the encoding (at different points each time.) Note that if i encode the streams one at a time with the same project, the encoding completes correctly.