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Hi All,Having a very strange problem which I hope someone can give me some idea on. When I boot up Premiere, HDMI video output from my DeckLink Minimonitor 4k card is fine for 5 minutes or so, then shows interference, (like this : https://photos.google.com/photo/AF1QipNmPlIQFAxmXI08aAy9MiZlW3n7z60xxA2K56tk ) then goes blank-ish (like this https://photos.google.com/photo/AF1QipO-3-vyInc24WuC-2nOIrW2GU_Dvxkm68OLvBD_).And here's the kicker, restart the machine and everything fine for 5 minutes ago and it starts all over again.Done all the normal stuff: deleted caches and preferences, uninstalled and reinstalled both Premiere and the Blackmagic drivers. Video is garden variety 1080i proves from a BMD disk recorder and has never caused any issues.
Any ideas ? Really need this to be over....
System config:Mac Pro 7.112 core 3.3 Ghz48 GB ramRadeon W5700 X, 16 GBCatalina 10.15.7DeckLink Minimonitor 4kDesktop video 12.1Adobe Premiere 15.2
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