MoD-Sith

i have kotor 2 and im on the dxun moon and at that part after you do all the forest quests where you have to fightvthe sith assassins, i seem to have developed the 1/3 loading bug and have tried everything that this forum has suggested, and its only the one save game that i have that wont load, the autosaves will load annd so will other saves but those are atleast an hour before my main save, what should i do?