That is the error I got in the last save in the last render of chapter 5, simply it seems there was lot of changes (renders, dialogue and probably code) in chapter 5 and some saves can't find a place to rollback. Because I use mods and the game is still in development I save in every choice in a different slot so I went back to the last save with a choice and it worked, found a place to rollback and it rollbacked a bit.
This is the last choice of chapter 5 (I guess on any path?!?), a save made there should always work even though it goes a bit back on the story.
View attachment 4727356
So yeah if you don't save often in different slots it is always a gamble in not completed games hehe.
About the patch, I dunno I did what I do every time, I extracted all in a folder and cut it and paste all the content in the place where the executable is in the game installation. Only thing I had to do was to remove the scrappy mod code folder inside the game folder because was giving parsing errors when running the game. So far no errors during my first playthrough save, even though I didn't play that much yet.