If you have used the "hack" to try to force Premiere Pro to use your card, you are in untested and unsupported territory. We only add cards to the "supported cards" file when we have tested them and found them to work. There is a reason that we do this, and your case demonstrates that. We recommend against forcing Premiere Pro to use an unsupported card by modifying this file.
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Todd Kopriva, Adobe Systems Incorporated
product manager, professional video software
After Effects team blog
Premiere Pro team blog
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