Unfortunately the problem still exists.
With this list of trackers:
udp://tracker.openbittorrent.com:80
udp://tracker.publicbt.com:80
udp://tracker.istole.it:80/announce
udp://tracker.ccc.de:80
udp://open.demonii.com:1337
i still get No response for all of them, for a couple of hours now
tried restarting bitcomet, readding the torrent - nothing works
but the moment i add it in utorrent - i immediately get lots of peers and full speed download
yes, i have udp port open in both utorrent and bitcomet