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

[ssdde]

yeah, you can send me any sources with chapters to test, especially you said you have no problem with chapters there.

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i using another source to encode, but this time it seems at the point of chapters got crash, can't encode complete. i creat output debug file for you.

  added new job with id 2021-07-11@22_22_13_1510
starting 2021-07-11@22_22_13_1510_01_audio@22:22:13.180 - D:\X\del-x\clip\drop-ronaldo.mp4
2021-07-11@22_22_13_1510_01_audio finished after 00:00:10.702
starting 2021-07-11@22_22_13_1510_02_audio@22:22:23.885 - D:\X\del-x\clip\drop-ronaldo.mp4
2021-07-11@22_22_13_1510_02_audio finished after 00:04:40.292
delete C:\Users\x\AppData\Local\Temp\iId_2_aid_0_lang_en_DELAY_3ms_2021-07-11@22_22_13_1510_01.dts
starting 2021-07-11@22_22_13_1510_04_attach@22:27:04.415 - D:\X\del-x\clip\drop-ronaldo.mp4
2021-07-11@22_22_13_1510_04_attach finished after 00:00:00.057
starting 2021-07-11@22_22_13_1510_07_video@22:27:04.478 - D:\X\del-x\clip\drop-ronaldo.mp4
2021-07-11@22_22_13_1510_07_video finished after 00:00:19.102
-> 2021-07-11@22_22_13_1510_07_video crashed: ERROR: C:\Users\x\AppData\Local\Temp\drop-ronaldo_2021-07-11@22_22_13_1510_07.stats was not created!
Aborting '2021-07-11@22_22_13_1510_07_video' due to: ERROR: C:\Users\x\AppData\Local\Temp\drop-ronaldo_2021-07-11@22_22_13_1510_07.stats was not created!