biggest bluey animation error?

i watched a few bluey animation error compilations and was surprised to not see this one listed anywhere (or maybe it was and i just missed it), so i thought it'd be fun to post about. disclaimer: i know animation is incredibly difficult and am not at all poking fun at the creators of bluey, i just think it's fun to find errors like this

Copyright Disclaimer:
Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non- profit, educational or personal use tips the balance in favor of fair use.