Audio Drops After Encoding

Hi all,
I created a video in Premiere and sent it to AME to encode. It was a basic edit and everything worked on the timeline before I sent it to encode. After encoding to a 720p 59.94fps H.264 Quicktime, the last 2 minutes of audio on the video disappear. I've checked the audio track mixer window and that track is panned center.. The audio plays fine in Premiere.. I just don't know why it disappeared after being encoded. Can anyone help me to figure out why this happened? It caused some grief for me at work. Thanks!
-Cody

First of all, what version of Premiere Pro and AME are you using on what platform (Win or Mac)?
Can you try exporting your sequence directly from Premiere Pro without sending to AME? Does it work? If it does not work, you may want to try clearing media cache. When none of Adobe applications are running, could you try deleting the media cache folders called "Media Cache" and "Media Cache Files" at
Mac: /Users/<your user name>/Library/Application Support/Adobe/Common
Win: <OS drive>:\Users\<your user name>\AppData\Roaming\Adobe\Common
Then, open the project in Premiere Pro. Please wait all import process to be done. See the Premiere Pro main window's bottom right (see the screenshot below). Please wait till all progress to be done. Can you properly export now?

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Complete name : /Users/tester/Movies/export-tests/test24trailer.mpg
Format : MPEG-PS
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Duration : 12s 576ms
Overall bit rate mode : Variable
Overall bit rate : 8 614 Kbps
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ID : 224 (0xE0)
Format : MPEG Video
Format version : Version 2
Format profile : Main@High
Format settings, BVOP : Yes
Format settings, Matrix : Default
Format settings, GOP : Variable
Duration : 12s 533ms
Bit rate mode : Variable
Bit rate : 7 995 Kbps
Maximum bit rate : 38.8 Mbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Active Format Description : Letterbox 16:9 image
Frame rate : 59.940 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
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Bits/(Pixel*Frame) : 0.145
Stream size : 11.9 MiB (92%)
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ID : 189 (0xBD)-128 (0x80)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
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Channel positions : Front: L C R, Side: L R, LFE
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