UPnP no cover for folder with subfolder(s)

Hi,
here is how I organize a TV Show folder :

title
->Season 1
–>title.s01e01.mp4
–>title.s01e02.mp4

When I go through the TV Shows with SMB, each season’s folder and the TV Sow’s folder have the metadata (cover, synopsys).
But when I use UPnP, the folder of the TV Show doesn’t have any metadata.
I imagine it is due to the fact that the video files are not directly in the TV Show file but in the subfolder of his season.

is it just me?

Thx

I have a similar question about the lack of folder covers. Is this a limitation of DLNA, or is this a feature that could be added in the future?