BAZARR an exception occurs during the synchronization process

[thomasvt1]

Describe the bug
When syncing (some) subtiles the following error was present in the logs BAZARR an exception occurs during the synchronization process for this subtitles: /movies/101 Dalmatians (1996) {tmdb-11674}/101 Dalmatians (1996) {tmdb-11674}.nl.srt

19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |SHIFT_JIS Japanese confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |EUC-JP Japanese confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |GB2312 Chinese confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |EUC-KR Korean confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |CP949 Korean confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |Big5 Chinese confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |EUC-TW Taiwan confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |windows-1251 Russian confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |KOI8-R Russian confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |ISO-8859-5 Russian confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |MacCyrillic Russian confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |IBM866 Russian confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |IBM855 Russian confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |ISO-8859-7 Greek confidence = 0.0|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |windows-1253 Greek confidence = 0.0|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |ISO-8859-5 Bulgairan confidence = 0.0|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |windows-1251 Bulgarian confidence = 0.0|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |TIS-620 Thai confidence = 0.0|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |ISO-8859-9 Turkish confidence = 0.5877259519062737|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |windows-1255 Hebrew confidence = 0.0|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |windows-1255 Hebrew confidence = 0.0|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |windows-1255 Hebrew confidence = 0.0|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |utf-8  confidence = 0.99|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |SHIFT_JIS Japanese confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |EUC-JP Japanese confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |GB2312 Chinese confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |EUC-KR Korean confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |CP949 Korean confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |Big5 Chinese confidence = 0.01|
19/09/2021 11:50:05|DEBUG   |chardet.charsetprober           |EUC-TW Taiwan confidence = 0.01|
19/09/2021 11:50:05|INFO    |ffsubsync.subtitle_parser       |detected encoding: utf-8|
19/09/2021 11:50:06|INFO    |ffsubsync.ffsubsync             |computing alignments...|
19/09/2021 11:50:08|INFO    |ffsubsync.ffsubsync             |...done|
19/09/2021 11:50:08|INFO    |ffsubsync.ffsubsync             |score: 405679.000|
19/09/2021 11:50:08|INFO    |ffsubsync.ffsubsync             |offset seconds: 0.000|
19/09/2021 11:50:08|INFO    |ffsubsync.ffsubsync             |framerate scale factor: 1.000|
19/09/2021 11:50:08|INFO    |ffsubsync.ffsubsync             |writing output to /movies/101 Dalmatians (1996) {tmdb-11674}/101 Dalmatians (1996) {tmdb-11674}.nl.synced.srt|
19/09/2021 11:50:08|ERROR   |root                            |BAZARR unable to sync subtitles: /movies/12 Dates of Christmas (2011) {tmdb-81393}/12 Dates of Christmas (2011) {tmdb-81393}.en.srt|
19/09/2021 11:50:12|INFO    |ffsubsync.ffsubsync             |...done|

But according to ffsubsync devs (smacke/ffsubsync#134)

It looks like ffsubsync has determined that the subtitles are already synced. If you use the pre-synced subtitles, does it look OK?

I'm not sure why Bazarr indicates that an error occurred -- perhaps it's checking that ffsubsync has a nonzero shift, but if the subtitles are already synced, then a zero shift should be acceptable. If it looks like the subtitles are already synced, I'd recommend filing an issue against Bazarr.

To Reproduce
Steps to reproduce the behavior:

1. Start sync of subtitle (automatic or manual)
2. Wait a bit
3. See error

Expected behavior
Subtiles seem to be already in sync, so it should return the process has completed succesfully.

Software (please complete the following information):

• Bazarr: 0.9.9
• Radarr version 3.2.2.5080
• Sonarr version 3.0.6.1265
• OS: unraid (docker/hotio)

[TRaSH-]

First time I see this issue
Could you tell be which scoring you are using

[thomasvt1]

Is this the score you meant?

[morpheus65535]

This error is thrown when this part of code return False: `if os.path.isfile(self.srtout):``

The operating system says that the file outputted by ffsubsync doesn't exist on disk. Any sort of rclone or anything else that could be moving the synced.srt file as soon as it's written to disk?

[thomasvt1]

Any sort of rclone or anything else that could be moving the synced.srt file as soon as it's written to disk?

Negative, it's plain unraid with no cache drive or anything special.

[morpheus65535]

And you can reproduce the issue over and over again with this subtitles?

[thomasvt1]

Hmmm very strange, I was able to reproduce it every time yesterday for multiple movies (and even this morning)

19/09/2021 11:37:49|ERROR   |root                            |BAZARR unable to sync subtitles: /movies/The Twilight Saga Eclipse (2010) 
19/09/2021 11:44:29|ERROR   |root                            |BAZARR unable to sync subtitles: /movies/10 Things I Hate About You (1999) {tmdb-4951}/10 Things I Hate About You (1999) {tmdb-4951}.nl.srt|
19/09/2021 11:45:27|ERROR   |root                            |BAZARR unable to sync subtitles: /movies/100% Wolf (2020) {tmdb-520946}/100% Wolf (2020) {tmdb-520946}.en.srt|

But now it seems to go fine?

(101 dalmatians)

I haven't changed anything else than enabling/disabling debug logging. So I'm not sure what the cause is/was.

For me this issue can be closed, unfortunately without good root cause

[morpheus65535]

Let's continue this on ffsubsync github issue.