Pretendo Mii Won't Update?

Hello.

My Mii won’t update on Pretendo and just has this default one. My actual Mii is registered on the Wii U as the Mii connected to the account with Pretendo.

On the Pretendo Website when I click on my default Mii, it shows the real Mii from the Wii U! But saving it does not update it on Pretendo still.

What do I do to fix this?

This sounds like a caching issue to me. The image on the website should be updated on its own after some time passes, and there’s nothing you need to do to fix that on your end.