Hello forum members, I have a nested sequence with multicamera enabled on the timeline. I am keying a green screen using the "Ultra Key" effect. After a few minutes of adjusting the key the program monitor goes black. If I double click on the edit, the source monitor is black also. I can scrub the timeline in the sequence and/or the program monitor and hear audio but no video displays at all. Even if I "undo" all edits and adjustments, no video displays in source monitor or program monitor. The only way to get video to display again is to restart Adobe Premiere. But as soon as I get started adjusting the Ultra Key, all video disappears. Here are things I have done in an attempt to remedy this issue: 1. Cleared media cache 2. Reset preferences 3. I was running "Premiere Pro CC 2015.3" updated to "Premiere Pro CC 2017" 4. Checked for an update to my GPU but there is none though Invidia is offering a "gaming driver" None of the above solved the problem. The following did however yield partial solutions: A. Under "project settings", "general", "Video Rendering and Playback" select "Mercury Playback Engine Software Only". This works but defeats the whole purpose of having a CUDA enabled GPU. B. Use another key effect. C. Use "After Effects" I have seen this issue in forums, blogs and videos dating back to July and before. People have sent "bug fixes" to Adobe concerning this. The Ultra key effect is one of the most useful tools in Premiere but this issue was missed in the PP CC 2017 update and the update prior to it. Does anyone have a complete solution to the issue I am having with the Ultra Key effect in Adobe Premiere Pro CC 2015.3 or Premiere Pro CC 2017? Many thanks to anyone who can shed some light upon this issue. Jerald Tech Specs: Intel Core i7-6850K 64 GB RAM Windows 10 Pro 64-bit NVIDIA GeForce GTX 1080 NVMe Toshiba RD400 (OS and programs) Samsung SSD 850 EVO 500GB (Source files) SanDisk SSD 512GB (Media Cache) Western Digital Black 2TB HD (Render and Storage)
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