Near the end of the Thinned Blood quest, after freeing Lily my character gets stuck between the two chairs in the room. Lily is supposed to leave if I'm not mistaken, but she just stands there next to the door and Vandal never arrives.

I've googled a bit and frenzying through the console just freezes my game. I have the current version installed through Galaxy. Is there any way to get past this?

Try the console command "camera_kill" and then "frenzy_player".

Just to make sure problems like this don't turn up again. You do know that you have to disable Galaxy's auto-update for bloodlines, and that if you install a new version of the patch you must also start a new game?

I'll try those commands and see what happens, it's as if the cutscene fails to trigger. If I have no luck, I'll start a new game. It kind of sucks that the patch can break your old saves, but being unofficial it's kind of understandable.

I'll let you know how it goes, thank you.

Edit: fiddling with Galaxy I tried the fix/repair option, it downloaded something and when I tried again the quest worked as intended. The doomsayer guy behind the diner isn't talking anymore though, is the game fine or is it something else that broke? Everything else seems to be ok.

Hard to tell, but if the other people in the hub still move you're probably good to go. Although there is one map, the theatre downtown, that is very prone to breaking. You have to go there about 2/3 of the game for one of the Nosferatu. If it comes to that, there is a way around the problem.
I'd probably risk it if I wanted to play the base patch provided by gog.

That is a common bug that can happen sometimes...

Can confirm that everything seems to be fine, I've done a couple of other quests no problem. If things start to break again I'll start a new game, otherwise I'll keep playing this save. Thanks for the info!