I have a vu+ ultimo 4k. When browsing Plex dlna content I got a generic client profile. Video are then direct played...but some of them do not show up. Most of the time these are mkv h264/ac3 and are listed on the client side as m3u (and therefore filtered). Mkv/aac are fine and presented as mkv. Any ideas how this can be fixed? @plex, Bug?