Hi all,
I’m working on a workflow that updates video thumbnails in Channels after download, and I’m running into what looks like a thumbnail cache issue.
What I’m doing:
- a download tool saves the video and a matching .info.json
- a script updates the Channels file record with the correct YouTube thumbnail
- the script also replaces the Channels preview image for that file
What I’m seeing:
- the file record updates correctly
- opening the video details shows the new thumbnail
- but the library/grid thumbnail often stays on the old image
- if a Channels client is already open while the item first appears, that client seems to latch onto the old thumbnail and never refresh to the new one
- this happens on iOS, iPadOS, and tvOS
My question:
Is this expected behavior in Channels DVR Server / the clients, and is there a supported way to force the library thumbnail to refresh after the preview image has been replaced?
I’m trying to avoid a workaround that depends on deleting and re-adding the item if there’s a better supported path.
Thanks.