i have a very slight idea as to what'd be causing this issue but not sure what to do on your end to remedy this situation. assuming it's a problem with variables from previous versions i can send a link with a save up to that point for you to try— i'll try and have that for you by tomorrow
https://drive.google.com/file/d/1ZRfIc4HNTyTQQEVbwkwyBwvEziqkaarN/view?usp=shari...
This save in the above .rar is right before the shrine event. But just in case— here's a save right after it-
https://drive.google.com/file/d/1ANDEqxzSjBo1udCzigmfGbmVclT_5Mz3/view?usp=shari...
Hopefully these get you past whatever this bug might've been.