Those are rare, haven't seen one for ages.
From the looks of it, this happens when Hybrid tries to extract subtitle from "N:\BDMV\STREAM\00004.m2ts" and decides it can't.
Not sure why it's not using tsMuxeR or ffmpeg => will look at it after work and report back.
Looks a bit like you are using the Subtitle->Tab to load an .mpls file and then try to extract the subtitles through there, instead of using the controls on the Base-tab.
Cu Selur
From the looks of it, this happens when Hybrid tries to extract subtitle from "N:\BDMV\STREAM\00004.m2ts" and decides it can't.
Not sure why it's not using tsMuxeR or ffmpeg => will look at it after work and report back.
Looks a bit like you are using the Subtitle->Tab to load an .mpls file and then try to extract the subtitles through there, instead of using the controls on the Base-tab.
Cu Selur