please see
Do you run Plex Media Server as a service or scheduled task or headless / through RDP ? That would be one cause for the crashes when testing hardware codecs.
Apr 19, 2020 21:37:40.865 [9848] DEBUG - Codecs: testing h264_qsv (encoder)
Apr 19, 2020 21:37:40.865 [9848] DEBUG - Codecs: hardware transcoding: testing API qsv
Apr 19, 2020 21:37:41.010 [4224] DEBUG - Job running: C:\Program Files (x86)\Plex\Plex Media Server\CrashUploader.exe "--directory=P:\Plex\Plex Media Server\Crash Reports\1.19.1.2645-ccb6eb67e" --version=1.19.1.2645-ccb6eb67e --platform=Windows "--platformVersion=10.0 (Build 18363)" --
There are also crashes in igdumdim32.dll which is the intel graphics adapter dll - this is covered by item 1 in my linked post
Check the intel driver version
