My prod PMS server is FreeBSD (running in a jail) and I don’t experience this at all using the web player so lets see if we can figure if this might be a client issue.
First of can you both post exact server version running and web app, same for LG.
Also what type of subs?
Please give more info on the video or post the XML, this will help indicate what the problem might be.
Also there’s been a MAJOR upgrade to the transcoder in recent versions allowing for better Hardware Transcoding support with recent CPUs, some users using older chips (or more precisely Apollo Lake) did report a few issues, we also did solve a issue with subs that seems very similar to what’s described (this woulld be in one of the 1.18.0 builds though so I doubt you wouldn’t have it:
(Transcoder) Subtitles could vanish after a random period after seeking in certain clients (#10573)
There’s ofc always the chance of some regression, but in any case please post the request info and hopefully we can find the culprit.
