I've been using the RC 8 package linked to from the front page, and I still get this issue. Nothing relevant seems to be in the log (sometimes the last thing in the log is from a couple of minutes before the crash).
Here's the information I provided in the IRC channel:
(05:55:19) Nanobot: Well, overnight, the torrent list blanking thing happened again
(05:56:19) Nanobot: [DEBUG ] 01:01:48 torrentmanager:551 Saving torrent state file.
(05:56:19) Nanobot: [DEBUG ] 01:01:51 alertmanager:97 tracker_announce_alert: [Mendoi]_Amaenaideyo_Katsu_1-13_[DVD][complete] (
http://bt.nanashi-fansubs.com:2710/announce) sending announce (none)
(05:56:19) Nanobot: [DEBUG ] 01:01:51 torrentmanager:678 on_alert_tracker_announce
(05:56:30) Nanobot: Those are the last lines of the log
(05:56:43) Nanobot: markybob
(05:58:25) Nanobot: And I apparently lost all the download progress since the last time I manually restarted Deluge
(05:58:43) Nanobot: *sigh*
(06:00:03) Nanobot: And it went blank again
(06:00:40) Nanobot: Restarting again..
(06:02:40) Nanobot: Blank again
(06:03:03) Nanobot: Last lines in the log file:
(06:03:04) Nanobot: [DEBUG ] 06:01:22 torrentmanager:716 on_alert_tracker_error
(06:03:04) Nanobot: [DEBUG ] 06:01:22 torrentmanager:678 on_alert_tracker_announce
(06:03:04) Nanobot: [DEBUG ] 06:01:22 alertmanager:97 tracker_reply_alert: [Mendoi]_Amaenaideyo_Katsu_1-13_[DVD][complete] (
http://tracker.scarywater.net:443/announce) received peers: 40
(06:03:04) Nanobot: [DEBUG ] 06:01:22 torrentmanager:661 on_alert_tracker_reply
(06:03:10) Nanobot: I'm restarting it again
(06:04:04) Nanobot: BTW, the Amaenaideyo torrent was running for a few hours yesterday without incident
(06:05:35) Nanobot: Blank
(06:05:46) Nanobot: Restarting :/
(06:05:52) Nanobot: It's pretty predictable at this point
(06:06:42) Nanobot: I'll try pausing that torrent
(06:07:40) Nanobot: It went blank
(06:08:16) Nanobot: This time I got a weird thing in the log:
(06:08:17) Nanobot: [DEBUG ] 06:06:44 alertmanager:97 hash_failed_alert: Space Pirate Sara uchuu kaizoku sara å®x87;x87;å®x99;x99;æµ·è³x8a;x8a;ãx82;x82;µãx83;x83;© vol.01 ãx82;x82;®ãx83;x83;¼ãx83;x83;¬ãx83;x83;³ãx81;x81;®åx8f;x8f;x8c;x8c;åx90;x90;(DL 704x396 WMV9)[CRC BE86] .avi hash for piece 562 failed
(06:08:17) Nanobot: [DEBUG ] 06:06:58 alertmanager:97 hash_failed_alert: Space Pirate Sara uchuu kaizoku sara å®x87;x87;å®x99;x99;æµ·è³x8a;x8a;ãx82;x82;µãx83;x83;© vol.01 ãx82;x82;®ãx83;x83;¼ãx83;x83;¬ãx83;x83;³ãx81;x81;®åx8f;x8f;x8c;x8c;åx90;x90;(DL 704x396 WMV9)[CRC BE86] .avi hash for piece 432 failed
(06:08:17) Nanobot: [DEBUG ] 06:07:14 alertmanager:97 hash_failed_alert: Space Pirate Sara uchuu kaizoku sara å®x87;x87;å®x99;x99;æµ·è³x8a;x8a;ãx82;x82;µãx83;x83;© vol.01 ãx82;x82;®ãx83;x83;¼ãx83;x83;¬ãx83;x83;³ãx81;x81;®åx8f;x8f;x8c;x8c;åx90;x90;(DL 704x396 WMV9)[CRC BE86] .avi hash for piece 599 failed
(06:08:52) Nanobot: I'll restart and pause that one too
(06:10:37) Nanobot: Went blank
(06:10:53) Nanobot: Uhhh
(06:10:54) Nanobot: [DEBUG ] 06:09:57 alertmanager:97 tracker_reply_alert: [Mendoi]_Amaenaideyo_Katsu_1-13_[DVD][complete] (
http://tracker.scarywater.net:443/announce) received peers: 38
(06:10:54) Nanobot: [DEBUG ] 06:09:57 torrentmanager:661 on_alert_tracker_reply
(06:10:59) Nanobot: I had that torrent paused...
(06:11:07) Nanobot: Oh
(06:11:12) Nanobot: That's from a full minute ago
(06:11:36) Nanobot: So basically it didn't log anything between like two seconds after startup and when it crashed
(06:12:05) Nanobot: I'll try removing the seeding torrents and see if it has an effect.
(06:12:42) Nanobot: I have to go to work soon
(06:13:40) Nanobot: It went blank

(06:14:28) Nanobot: Restarting again, this time also pausing everything tracked by nyaatorrents.org
(06:17:39) Nanobot: It's been over 3 minutes and isn't blank yet
(06:17:57) Nanobot: Looks like nyaatorrents is causing problems again. It wasn't causing problems yesterday afternoon
(06:18:17) Nanobot: markybob: Hope this is enough info to help track down the problem
After that point, the blanking issue didn't occur again until almost a full day later, after I added another torrent from nyaatorrents.org.
This problems seems to have appeared in the last couple of RC releases (I think it first appeared in RC 8), and torrents tracked by nyaatorrents.org seem particularly prone to causing this issue. This is a major major showstopper for me, and I hope it gets fixed quickly.