Game became unstable after trying the Dawnguard questline as a vampire for the first time. Played with several characters before using almost the same modlist for hundreds of hours without problems. 1. Permanent CTD near the north entrance of Shriekwind Bastion. Going on foot or fast travelling makes no difference. Area was visited before two or three times without issue. 2. Permanent CTD near the Red Water Den exterior, Rift Watchtower after receiving the "Bloodstone Chalice" quest. Area was visited before several times without issue, even as a vampire. 3. Vampire Feeding animation not playing. Was fine for near 80 hours before being trasnformed into a Vampire Lord and worked for a while after that. Animations are patched with FNIS. Now the character gets stuck in sneaking mode despite getting the feeding notification. Re-applying FNIS or deleting defaultfemale.hkx solves nothing. Active Mod Files: Papyrus Log: