Bugs bugs bugs!

[Ueta]

Hi. I´ve been playing VTMB for a while. I´ve chose to kill ming. I am on the 3rd level of the dungeon (when you have to get the statues) and I´m having some problems with the enemies spawn: I kill some guys and when I turn back they already has been respawned. I started to have problems when I patched the game with 4.1: feeding was not working correctly (sometimes feed, sometimes not), now the dungeon problem, some quests bugged, I can´t open the Lily blood bank even with the code that I picked up in the site, when I finished the Sabbat quest the game stucked because I answered wrong questions (even the quest log was right when I talked to the prince nothing happens) and so on.
Question: how can I solve that?
Question 2: The fire crossbowtakes 1/2 HP when I get hit (with heavy defense rate). Is that correct? Even the werewolf didn´t do that monstruos damage (3 attack and a 1/2 to kill).

[Wesp5]

Originally Posted by Ueta

I started to have problems when I patched the game with 4.1

Did you update to 4.1 and then continued a saved game you started before?

[Ueta]

Yes I did (think I got the answer...).