I manually add some trackers to a torrent , closed Deluge , reopened it and the trackers are gone.
Merging trackers by adding the torrent results in the same problem.

When handling many torrents is annoying to use the context menu to reorder them. A posible solution is to reorder them by drag and drop them.

I solved my problem by removeing the torrent (not the content) and the I added it again

Today I opened deluge to find out that all my torrents were at 0%. Hopefully , all downloaded information is still there (e.g. : a ca. 90% downloaded torrent has 20 avis , and most of them are complete , but in Deluge it show as 0%)

One dependecy to this guide is subversion itself , add subversion package. sudo apt-get install g++ python-all-dev python-all python-dbus python-gtk2 python-xdg python-support libboost-dev libboost-thread-dev libboost-date-time-dev libboost-filesystem-dev libboost-serialization-dev libssl-dev zlib1g...

It has something to do with files , because the first time this happened to me I killed the process. Next time I opened Deluge everything I had downloaded in my last session was gone , (eg 10% of a torrent).

Do NOT kill Deluge's process to stop it.

Simple and lightweight , just like foobar2000

Fixed I found this somewhere else rm /usr/bin/deluge rm -r /usr/lib/python2.5/site-packages/deluge rm -r /usr/lib/python2.5/site-packages/deluge-*.egg-info rm -r /usr/lib/python2.4/site-packages/deluge rm -r /usr/lib/python2.4/site-packages/deluge-*.egg-info rm -r /usr/share/deluge find /usr/share/l...

I tried both uninstalling previous version and upgrading directly nagel@nagel-rahxephon:~$ deluge no existing Deluge session Starting new Deluge session... deluge_core; using libtorrent 0.13.0.0. Compiled with NDEBUG. Applying preferences Pickling state... Scanning plugin dir /usr/share/deluge/plugi...

Good Job!