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Random Horizontal line when exporting (not interlacing issue)
When I try to export files from Premiere (2015.3) on my mac pro I often get horizontal lines that will appear randomly, pics below. Sometimes when it happens I can restart Premiere and have it work fine, not always. It happens in both Premiere and Media Encoder. It happens even if I convert XML to Prores files. It happens when exporting .mov or .mp4 files. Sometimes I can see the lines on the project before exporting. It only happens on the Mac pro, on the iMac there are no issues. Thoughts?
Specs:
Mac Pro (Trash Can)
OS X El Capitan 10.11.6.
Processor 2.7 GHz Intel Xeon E5
Memory 64 GB 1866 MHz DDR3 ECC
Graphics AMD FirePro D700 6744 MB


