Nemo fails to display emblems on video files (video/* MIME type) even when emblems are set

[gwape07]

Distribution

Linux Mint Cinnamon 22.2

Package version

nemo 6.4.5

Frequency

Always

Bug description

Emblems do not render on video file icons (like .mp4 or .mkv), but they work perfectly on folders. This happens even when video thumbnails are disabled and a generic icon is shown.

Steps to reproduce

In Nemo, select a folder and right-click > Properties > Emblems. Add an emblem (e.g., "Important").

Observe: The emblem correctly appears on the folder icon.

Select a video file (e.g., an .mp4 file) and right-click > Properties > Emblems. Add the same emblem.

Observe: The emblem does not appear on the video file icon.

Expected behavior

The emblem should appear on the video file icon, just as it does on the folder icon.

Additional information

This appears to be a rendering bug in Nemo, not a problem with the file system.

I have confirmed using the command line that the metadata::emblems attribute is being set correctly.

When I run: gio set "/path/to/my/video.mp4" metadata::emblems emblem-important

And then check with: gio info "/path/to/my/video.mp4" | grep "metadata::emblems"

The terminal correctly returns: metadata::emblems: emblem-important

This proves the system knows the emblem is set, but Nemo is failing to display it for this file type.

This bug persists after:

Disabling video thumbnails.

Changing icon themes (Mint-Y, Mint-X, Adwaita).

Clearing the thumbnail cache (rm -r ~/.cache/thumbnails/*).

Reinstalling ffmpegthumbnailer and nemo-data.

Defining a custom icon for video MIME types.

[mtwebster]

The emblems may be suppressed if the thumbnail has too 'extreme' an aspect ratio - such that any emblems might end up obscuring a large portion of the image.

This is really a workaround to us not having enough control over emblems (we use Gtk3 to apply them, and we have no control over size or placement) - this is something on our roadmap to address.