1.32.5.7210 fixes hardware transcoding on Apollo Lake.
Gemini Lake will be fixed in a future release, date unknown.
In the meantime, fall back to 1.32.1.6999 (Download: 1.32.2.7002 - #31 by ChuckPa).
Synology does not permit direct fallbacks. You must uninstall the running version before installing 6999. Using DSM Package Center, Uninstall → Are You Sure → Uninstall Only. You can then install 6999.
Subscribe to the Plex Media Server announcement thread. Scroll to the bottom of the thread, change Normal to Watching. You will be notified of updates, including beta releases. When a fix is available for Gemini Lake it should be in the release notes (as it is for Apollo Lake).
