Thank you for the logs. You’re PMS is a beta version 1.29.0.xxxx in combination with a QNAP Celeron J4125 processor.
Please upgrade your beta to 1.29.1.6260 and retest.
Significant changes to transcoding have been made in 1.29, and your logs showed
Sep 29, 2022 14:33:42.522 [0x7f1e99996b00] DEBUG - [Req#224a/Transcode] TPU: hardware transcoding: enabled, but no hardware decode accelerator found
I’m not sure what is causing the playback to stop yet, but the new version and new logs will help. A lot depends on how the SRT subtitles are handled and the fact that the audio track is DTS, which is says is disabled.