@gizzin
deadzone quantization is from HCenc 0.24 beta only, and I have not yet added support to 0.24 beta. Anyway, if you want to use 0.24 you can and you can edit its command parameter by toggling on the 'Edit command parameters at runtime' advanced option.
@QuadraQ
Have you tried to analyse the srt file with SubtitlesCreator? Any errors report?
Could you setup CCExtractor to output subtitles in sup format? One conversion is better than two....
Bye