Removing a tag containing a space or symbol silently did nothing: the removed values were pre-encoded and the transport encoded them again, so Plex matched nothing while the UI showed the tag gone. Folder listings and the shared list wrapper also converted every transport failure (401, 500, timeout) into a successful empty list, so an unreachable server rendered 'no folders'/'no results' with no retry while Jellyfin surfaced an error. Failures now propagate to the existing error paths, and the match screen gained one.
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