[HELP] after encoding ass into mp4, but there is no subtitle at all

[Selur]

Send you a link to a dev version, in which it does work if 'Config->Containers->Mp4 Settings->FFmpeg instead of MP4Box' is enabled.
Going to bed now, will try to look at it some more during the week, but I don't know whether I'll find some time, since I have a really busy week ahead of me.

Cu Selur

Ps.: You could also test whether this only happens when preset 'ultrafast' is used, or also with 'superfast' (which uses b-frames).