macOS: Stuttering on certain media when viewing on Plex Media Player Mac

[Jordan10924]

Test environment

PMS Version: 1.21.0.3616 PMP Version: Plex Mac version: 1.24.0.1.1483-714cba36 Platform: macOS version 11.0.1

Steps to reproduce

1. Use a Macbook Air (Tested with Early 2014 13'3 inch version and later 2020 with Apple M1).
2. Ensure that you are using Plex Media player.
3. Play a TV or film (Media that I know stutter on Plex Media Play for Mac are: The Big Bang Theory, 300, X-Men. Although the exact show is probably not relevant, there's a mix of file types that I am experiencing this on.)

Current behavior

1. Stuttering on the video making it unwatchable. This is accompanied with high trustd (I think one of Apples bundled processes) usage in activity monitor. Up to approximately 50% CPU usage (Note that this only occurs on episodes that are stuttering, other media work fine). In this image I am playing an episode from the Big Bang Theory: In this image I am watching 1917: Some info about the files: As you can see from the media info the episode from the Big Bang Theory is using a lower bitrate and lower quality than 1917, yet The Big Bang Theory stutters and 1917 does not.

This high trustd usage will continue until I stop playing one of the affected media. It still persists when paused. When playing another video this will not occur on most TV and Films.

Both are using Direct play for audio and video and are not being transcoded on the server.

This error does not occur when playing the video directly from the Mac, only through Plex media player. Nor does the error occur on other devices, only on Mac.

Here are two YouTube videos of what I have described: https://youtu.be/9Hv5XkmA6Us https://youtu.be/dEq4Mug5WQU

Expected behavior

1. No stuttering and trustd usage should not be using 50% of CPU.

Plex Media Server Logs_2020-12-07_21-17-35.zip

[AngryMooses]

Can confirm that I'm seeing the same with Big Sur on an Intel Mac.

[LazarRistic]

same here