I know I sounded rude, therefor I apologize to you and your team, but I felt left alone with the issue, especially if there is either no communication or just a simply "play without the patch". I don't know how it is for the other people with this error, but it leaves a bad taste, so to say. And I have to say, I tried nearly everything at this point, redownloading, using the WT Mod+Twins patch, just the Twins patch, deleting everything except my saves. Nothing help regarding the combination of the new version with the patch. It gets frustating, especially if you read the same answer from different people for two days or insults, like "people can't read" or "you behave like a ... year old" and no real solution. You're clearly not to blame for the behavior of other people. But I think you understand, what I'm trying to say. As for now, I'm too frustrated by this whole mess, especially because it means, I can't boot the game with the patch. It would be not that big of a deal for me to replay it, luckily there is the option to skip even unseen content, so I could get to where I was. But so far, that is no option until now.
It's too late now to try more things, especially since I'm temporarly blind on one eye. I will try something tommorow again (deleting the saves after making a backup). If I'm successful then, I let you know. Sorry again for being an asshole to you and your team.