Switch [Bug] Crash After Flower Dance – Year 4 (Switch, v1.6.15.3)

[Jasmin_Tea]

The game consistently crashes at the end of the Flower Dance day in Year 4. It happens whether I participate in the festival or skip it. Restarting the Switch, reinstalling the game, and removing/reinserting the SD card did not resolve the issue.
Game version: 1.6.15.3
Nintendo Switch system version: 20.0.1