I tried to put a new avatar, but it doesn't change for some reason. Nothing appears.

Are you sure it met the size requirements?

Edit: Having similar issues myself.

Do you get a dialog saying it was successful?

I'll test on my alt anywyay

e - no dialog, so they're lagging again rn

instead for me, it says "under 3kb"

It should be working now, I think
Yes, it's fixed, for me at least

Fabillia a dit :

instead for me, it says "under 3kb"

Not a bug. Check the file size of your image.

It's instant for me now, so it's resolved.

Yeah, fixed now, even loaded up the avatar I tried uploading for me. Should be resolved for Haru and mew now too i hope.