UncleArtie
Friendly neighborhood bug catcher here again!
Funnily, I think this is actually related to your solution to the last bug I reported back in November.
When Cynthia is talking to Miyu in the marketplace and Miyu asks about the trip to the amusement park, you base Cynthia's response on the value of the parkactivities variable (line 17453). The problem is, you reinitialized that variable to 0 back in chapter 8 (line 15452). Since the value of parkactivities is now 0, Cynthia reports a bad date even though mine was perfect, perfect I tell you!
Okay, back to see what happens!