After reading all unread notes, clicking out into the main section of the pause menu once the "Unread Letters" section is empty crashes the game: (doesn't matter which mouse button is used)

Here follows a summary of the error log: (full log here)

◆ 2023-01-23T18:18:32

■ Error Type :

  NoMethodError

■ Message :

  undefined method `visible=' for nil:NilClass

■ Backtrace :

  (eval):251:in `quit_read_mail'

  (eval):397:in `mouse_press_cancel'

  (eval):360:in `main_menu_mouse_press_cancel'

  (eval):154:in `mouse_input'

  (eval):127:in `update_input'