other bugs with v2.51:
1) with the "new subtitle parer/renderer" my hebrew subtitle loads with a delay..
2) with the "new subtitle parer/renderer" my hebrew subtitle loads, but the text is not in order..bsplayer loads the text in a mess (inverted)
3) seems like you did not fix the external subtitle loading.
bsplayer still loads the internal subtitle and not the external.
Add option to prefer external subtitles over internal