Sounds like something is corrupted in the save file, can you upload your output log and if possible also the save file so one of our coders can take a look, thanks.

Remember the output log is reset each time you play, so we need a log from just after the error occurs.

Try the Home Key, I believe that resets Camera Orientation, if not there is definiely a key that does

The behaviour you're describing sounds like a lag issue, I use vampires quite a lot and the only time i've ever had issues with them "blinking" into the Prison to feed is when the game is lagging.

As Riva said though, this still isn't a bug and if you'd like to give feedback about the Vampire's mechanics you should do so on the suggestions forum.

I'm guessing you're only just hitting the mimimum specs for the game and that's probably the issue? But could you just post them for us just to be sure it's not something else instead.

Also there is a "delete" button, it's where the sell button (for selling rooms in normal play) usually is.

Hope that helps.

This should be fixed internally now, let us know if not, after the next patch is released.

Your output log the game generates as you play/run it.