Mp4 previews are being correctly generated but not showing, except for trash folder [bug]

[Guttalax]

all dependencies seem to be ok. config.php is correctly configured previews generate without errors The proof that everything is working is that if i delete files, they correctly appear with a thumbnail in trasbin. All other folders miss previews. Looks like trash folder uses a completely different logic for thumbnail generation.

The issue is reproduceable in 25.0 all sub versions and in Beta 26

[st3iny]

Thanks for the report.

Please confirm:

1. There are no previews shown for files on the files app (outside of the trash bin).
2. There are previews shown for files in the trash bin.

[Guttalax]

Correct, but this only true regarding mp4 files.

[labuzer]

I am running into the same issue, kinda. When using local storage, I could see mp4 previews just fine. However, after setting up Idrive s3 as primary storage I can now only see mp4 previews in trash as described.

[Mars160]

How to check whether those previews were generated?

[bbx-github]

I have the same issue with nextcloud: 28.0.3.2 and previewgenerator: 5.4.0

• previews are generated (checked for .mov and .mp4)
• previews do not show up in web interface
• after file deletion previews show up in trash

How to check whether those previews were generated?

I have a complicated method to check if previews for a specific file were generated:

1. connect do database (ex mysql: $ mysql -u <dbuser> -p <dbname>
2. extract fileid mysql> SELECT fileid, name FROM oc_filecache WHERE name = '<filename>';
3. seach in filesystem: $ find /var/www/nextcloud/data/appdata_oc<rand>/preview -type d -name <fileid>