Also trying to copy saves from the old version will cause the current version to throw errors and start from the beginning, I guess because of the changes with choices.
I personally enjoy issues like these, they don't make the game unplayable as there is a skip option to get where you were before in a short time. I've gotten used to things breaking and have grown to enjoy it.
Also thanks for making a great VN, I've enjoyed everything so far and am looking forward to the next updates!