Hi There
I have been trouble shooting this for about a week - this is what I have discovered.
When exporting using Media Encoder I can see the AMD Radeon Pro 580 in activity monitor max out to 100% and hover around there.
After some time, usually when encountering a lumetri effect on a clip, the graphics card activity will drop to 0% for 10-15 seconds.
During this time media encoder will continue on processing - but when reviewing the exported clip the section where activity dropped to 0% will correlate to an audio glitch - which is usually random piece of looped audio for about 2-3 seconds.
Here is a screen grab from Activity Monitor taken during an export. You can clearly see 2 instances where activity drops to 0%. This is where the glitches in the render have occurred
I have tried EVERY different setting possible including changing timeline setting, export settings, Open CL, Metal AND Software Only for the renderer. I have been editing for 20 years - I am not new to this.
I have tried rolling back to High Sierra, this seems to make Prem a bit more stable, but does not resolve this problem.
More recently I have tried using an EGPU (AMD Radeon RX 580) and what happens is BOTH graphics cards will drop out at the same time under load.
If I try to export directly out of Premiere Pro - it will crash mid export every time.
Yes I have had all of the hardware on my mac checked out and it is fine. I have a fresh install of Mojave 10.14.6 and Prem and Media encoder are both up to date (2019).
I am a bit stumped by this one - hope some of you in the community can help out - it would be much appreciated.
Below are the specs of my machine, and the timeline info.
Timeline was 1920x1080 with a mix of 6K RED footage, and 4K Blackmagic Camera footage. Most with lumetri effect added.
Exports settings in Media Encoder (or Premiere) where Vimeo 1080p Full HD preset (H264 MP4)
iMac (Retina 5K, 27-inch, 2017)
3.8 GHz Intel Core i5
16 GB 2400 MHz DDR4
Radeon Pro 580 8 GB
Thanks in advance, Andrew
AdChoices