# Analyse process freezes

**URL:** https://forums.plex.tv/t/analyse-process-freezes/813130
**Category:** Plex Media Server
**Tags:** server-synology
**Created:** [October 1, 2022, 8:36am UTC](https://forums.plex.tv/t/analyse-process-freezes/813130 "2022-10-01T08:36:13Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![jamesray](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/jamesray/32/289193_2.png) [@jamesray](https://forums.plex.tv/u/jamesray)
#### Post date: [October 1, 2022, 8:36am UTC](https://forums.plex.tv/t/analyse-process-freezes/813130/1 "2022-10-01T08:36:13Z")

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Server Version#: 1.29.1.6260

Not all my tracks have got the waveform. Initially they had, but I think after moving from M1 to Synology Nas (DS718+) they disappeared.

As yesterday suggested in another topic to re-analyse the library I started with around 550 albums.

> [@Persistent bug preventing Plex from scanning MUSIC folders in particular](https://forums.plex.tv/t/persistent-bug-preventing-plex-from-scanning-music-folders-in-particular/813003/4):
>
> As for missing waveforms and sonic analysis… did you re-analyze your audio library since migrating it (or specific albums since noticing they’re missing that information)?

I saw when the maintenance tasks started the sonic analysis started. But, after a few hours the scan process freezes at 325 albums to go. It is about 12 hours now it stucks at 325 albums.

So, why does it not proceed? What can I do?

 ![image](https://global.discourse-cdn.com/plex/original/4X/4/0/1/4016d587c984f980cb95df2cb8376438ac5545d1.jpeg)

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### Author: ![tom80H](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tom80h/32/19753_2.png) [@tom80H](https://forums.plex.tv/u/tom80H)
#### Post date: [October 1, 2022, 9:40am UTC](https://forums.plex.tv/t/analyse-process-freezes/813130/2 "2022-10-01T09:40:50Z")

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Have you configured your server to only do the sonic analysis during its maintenance window?  
If it’s actually stuck you might need to check out the [server logs](https://support.plex.tv/articles/200250417-plex-media-server-log-files/) to see if it’s reporting a particular file as corrupted that’s blocking the analysis from progressing.

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### Author: ![jamesray](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/jamesray/32/289193_2.png) [@jamesray](https://forums.plex.tv/u/jamesray)
#### Post date: [October 1, 2022, 10:40am UTC](https://forums.plex.tv/t/analyse-process-freezes/813130/3 "2022-10-01T10:40:42Z")

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Thanks @tom80H,

I unchecked mostly everything now in the task settings.

The process started at 12:00 o’clock and it stuck immediately.  
In the log files I discovered a corrupted file. After removing the file the process proceeds. I’ll wait and see what happens.

Nevertheless, I think a corrupted file should not stop the process.

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### Author: ![jamesray](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/jamesray/32/289193_2.png) [@jamesray](https://forums.plex.tv/u/jamesray)
#### Post date: [October 2, 2022, 10:30am UTC](https://forums.plex.tv/t/analyse-process-freezes/813130/4 "2022-10-02T10:30:08Z")

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After a few hours still no waveforms in the majority of tracks, except the new added albums from the last months.

I decided to do the [Plex dance](https://forums.plex.tv/t/the-plex-dance/197064) and the process is running now.

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### Author: ![system](https://global.discourse-cdn.com/plex/original/3X/2/a/2acb9765406f63293d357b4ec509ec39aa28f2ad.png) [@system](https://forums.plex.tv/u/system)
#### Post date: [December 31, 2022, 10:30am UTC](https://forums.plex.tv/t/analyse-process-freezes/813130/5 "2022-12-31T10:30:20Z")

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