It seems like he may have included the scripts in the patch rpa, dev response on discord to game not advancing from .5 to .55 content was to delete any existing scripts.rpa file, which worked for me to get through the new content.
Yeah, as the patch 055.rpa is big and has tons of rpa files, but pretty sure that's the reason the patched versions have been failing for folks, so when patched they need to remove the old scripts.rpa file, this explains a lot of it, people were trying to figure out why the patch wasn't working.
Removing script files after applying the update definitely needs to be in the OP.
If you use the "update patch" after copying of the contents of the update to your current install, you must delete any "scripts.rpa" files from the game folder. If you do not, you will not be able to get past v.5 content and the game will keep ending at v5 content.