Video Thumbnails Not Showing in Browser
I have Immich (server version 1.9.20) installed via TrueNAS Scale on a Lenovo T480 laptop (8 cores, 16GB RAM).
All thumbnails display fine when accessing the assets via the Immich app on my Android phone but when I access them via any browser (Firefox, Chrome, etc.) the don't display - instead, I get "Error loading image". Photo thumbnails display fine.
It's the same when I share assets in an album - the other parties get the same issue for video thumbnails.
The hover over preview works and the video plays if selected, so it seems it's just the thumbnails that don't render properly - see "Screenshot from 2025-08-27 09-26-45.png".
When I first installed Immich (several months ago) I had no such issues but it seems to have started during one of the Immich upgrades.
I've managed to find the following errors (see log file attached):
2025-08-21 15:31:56.385364+00:00[31m[Nest] 7 - [39m08/21/2025, 4:31:56 PM [31m ERROR[39m [33m[Microservices:{"id":"d43f284c-2b1b-4773-bedc-93c36742e89a"}][39m [31mUnable to run job handler (AssetGenerateThumbnails): Error: ffmpeg exited with code 234: Conversion failed!
I've not uploaded my docker-compose or env file on the basis that it's controlled by TrueNAS but please let me know if you do need it.
I've searched high and low for an answer to this and can't find anything, so I suspect that it's something out of whack with my setup, so any help would be much appreciated.
Many thanks
All thumbnails display fine when accessing the assets via the Immich app on my Android phone but when I access them via any browser (Firefox, Chrome, etc.) the don't display - instead, I get "Error loading image". Photo thumbnails display fine.
It's the same when I share assets in an album - the other parties get the same issue for video thumbnails.
The hover over preview works and the video plays if selected, so it seems it's just the thumbnails that don't render properly - see "Screenshot from 2025-08-27 09-26-45.png".
When I first installed Immich (several months ago) I had no such issues but it seems to have started during one of the Immich upgrades.
I've managed to find the following errors (see log file attached):
2025-08-21 15:31:56.385364+00:00[31m[Nest] 7 - [39m08/21/2025, 4:31:56 PM [31m ERROR[39m [33m[Microservices:{"id":"d43f284c-2b1b-4773-bedc-93c36742e89a"}][39m [31mUnable to run job handler (AssetGenerateThumbnails): Error: ffmpeg exited with code 234: Conversion failed!
I've not uploaded my docker-compose or env file on the basis that it's controlled by TrueNAS but please let me know if you do need it.
I've searched high and low for an answer to this and can't find anything, so I suspect that it's something out of whack with my setup, so any help would be much appreciated.
Many thanks
Immich_log.txt27.36KB
