Thanks for getting back with us about this, Unbothered_soul. We appreciate you taking those steps. Memojis are such a fun way to express ourselves, so we totally get wanting that to work as it should. Let's try a few more things. First, let's delete and recreate your Memoji, following the steps here: Use Memoji on your iPhone or iPad Pro. Next, please try using this Memoji while your iPhone is charging and when not, as well as on Wi-Fi and then just a cellular connection.
Let us know how this testing goes, please! Take care.