So far I'm quite happy with WMS, so once my trial expires, I think I will go for a licensed version.
However, I had a question first:
I sometimes use the "Beginning Intervals" feature (Settings - Media-resources - Service - Folder Transcoding).
I have set the interval to 5 minutes.
But if I use it, the subtitles are out of synch.
It shows video and audio from the time of the beginning interval that I selected, but the subtitles display as from the very start of the movie.
Any way to fix this?

I tried different file formats for the movies, and the subtitles are .srt with the same file name as the movie file.