About the stuttering playback in Premiere 2019
Just thought I'd post this because I've been trying to track down an issue and discovered something interesting.
I have two identical projects in 2018 and 2019. The one in 2018 always plays smoothly but the one in 2019 never does. I tried moving cache drives from inbuilt hard drives to inbuilt ssds to external USB 3.1 drives. Nothing helped. It was then I realized, 2019 would play smoothly until I rendered the effects. So I started to mess with preview presets.
The previews I had been using for both was the Cineform 10-bit preset. In 2018, they played fine, but they didn't work as well in 2019. So I went through all the presets, testing each, and landed on Quicktime 10-bit 422 uncompressed (the 8-bit worked as well.) 2019 began playing back as smoothly as 2018. (Albeit with giant preview files on my cache drive.)
This got me wondering. 2019 threw up low-level errors about my Cineform dll when I first installed it, and the only fix for it was to remove the Cineform supplied codec from system. 2018 never complained about it being installed.
So perhaps a change was made to the Cineform dll that isn't as optimized as well as the earlier version. I noticed when I used the Cineform presets, my hard drive would crunch away every time (I suppose) it was loading the next preview file. The uncompressed 10-bit hardly ever hammered on it.
Not really looking for a discussion. Just know some others here were having trouble with stuttery playback in 2019 and thought posting this might help them. I really prefer the Cineform not only for the size difference but the ease on the cpu.
The Cineform preview in 2018 doesn't seem to hammer on the drive as much, but that could be a placebo effect.
