Server Version#: 1.43.4.10903
Player Version#: 2016.19.0
I have lifetime Plex Pass but the playback speed option is no longer available in the new Plex app for me. I have reinstalled & rebooted iPhone&iPad&Apple TV&android phone with no success. The old web client and android tv app still function as they used to. See screenshots attached.
Your logs show you playing a DV file. It’s possible there are certain codecs that can’t change playback speed. I don’t have any of this type to try. Can you playback a normal hevc file and see if the option shows up there?