I've got one here. It happened shortly after choosing to speak to the mother in the prologue

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I'm sorry, but an uncaught exception occurred.

While running game code:
Exception: Say has image attributes (u'sad',), but there's no image tag associated with the speaking character.

-- Full Traceback ------------------------------------------------------------

Full traceback:
  File "main/common route/chapter1.rpyc", line 753, in script
  File "C:\Users\xxxx\AppData\Roaming\itch\apps\Mizari Loves Company\Mizari-beta-0.7.1-market\renpy\ast.py", line 708, in execute
    renpy.exports.say(who, what, *args, **kwargs)
  File "C:\Users\xxxx\AppData\Roaming\itch\apps\Mizari Loves Company\Mizari-beta-0.7.1-market\renpy\exports.py", line 1345, in say
    who(what, *args, **kwargs)
  File "C:\Users\xxxx\AppData\Roaming\itch\apps\Mizari Loves Company\Mizari-beta-0.7.1-market\renpy\character.py", line 1073, in __call__
    old_attr_state = self.handle_say_attributes(False, interact)
  File "C:\Users\xxxx\AppData\Roaming\itch\apps\Mizari Loves Company\Mizari-beta-0.7.1-market\renpy\character.py", line 942, in handle_say_attributes
    if self.resolve_say_attributes(predicting, attrs):
  File "C:\Users\xxxx\AppData\Roaming\itch\apps\Mizari Loves Company\Mizari-beta-0.7.1-market\renpy\character.py", line 868, in resolve_say_attributes
    raise Exception("Say has image attributes %r, but there's no image tag associated with the speaking character." % (attrs,))
Exception: Say has image attributes (u'sad',), but there's no image tag associated with the speaking character.

Windows-8-6.2.9200
Ren'Py 7.3.5.606
MizariBeta 0.7.1
Wed Nov 13 20:20:20 2019