Hey all, I'm not sure if I'm necromancing this thread as it hasn't been posted in in ages, but I'm having a pretty serious problem with RTT. So my apologies in advance, and know that I mean no offense.

First off, this is a fantastic mod. Seriously. I'm sure you've heard it loads of times, but heck, Ruin is one of the best companion mods out there for Oblivion. But unfortunately, I've been having problems with him recently. Ruin is crashing my game, basically. It all started when I was fighting the wraith at the Mouth of the Panther. He was cut down, but I didn't get the normal message (Ruined-Tail is unconscious). On top of that, he simply refused to get up. Then I tried talking to him, while he was still on the ground. Surprisingly, I could still have a conversation with him, despite his current status. So essentially, I was conversing with a dead Ruin.
No matter. I thought that it had something to do with the quest, so I reloaded a save and sent him home. After the quest, I travel home, and he isn't there. The Summon Ruin spell doesn't work, and I searched everywhere. The Arena, Cheydinhal, home. Zilch. So I think, perhaps he'll appear if I trigger the next point in his quest. Fine. I travel to Anvil to the dead drop and as soon as I take the note, Ruin appears. Which is good. Everything then goes fine, up until after the dream, where the Shadowscale Assassin comes for me.
Everything gets majorly messed up after that. I sleep in a bed, kill the assassin, then I try to exit the cell. Oblivion crashes. I try it with a different load order, same thing. I sleep in a different cell, but no go. So I try disabling the Knights plug-in and everything that has to do with it, cause the readme did report some conflicts. Reload, kill, and yeah, it seems like it's working, which is awesome. Then at the Stronghold, I die. When I try to reload a save, Oblivion crashes. I tweak the load order again and reload, but it seems like the only save game that I can load is before I kill the assassin. Everything else after that, crashes the game. On top of that, now it seems that every game I save is now corrupted. I can't load anything after I kill the assassin.
So help please? I'm really out of ideas. I even tried installing Ruin again, but that didn't help much. It seems that the only time where I can actually save and progress forwards is when Ruin is disabled. I did make a clean save and tried to restart his quest, but after that, my save games still became corrupted. Seriously. Any help at all would be greatly appreciated. Curious thing is, Ruin has always played nice with my other mods - the whole thing was really outta the blue.