This is not a known issue. I never want to be accused of deflecting the blame, however I believe that is an Adobe issue. The reason I believe that is that once you have exported your audio from Sonicfire Pro it becomes a WAV or AIFF file, depending on your OS. At that point it is no different than any other WAV file on your system. It should not act differently than other WAV files. I will run some tests. Keep me updated if you learn anything else about the problem.
In the meantime, I would definitely suggest that you update your version of Sonicfire Pro to the latest release 3.2.1. It is free and available at
http://www.smartsound.com/support/updates.html
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Scott Clark
Technical Support
SmartSound Software
support(at)smartsound.com