Problem with new GPG 2.1 key

My PGP key is soon to expire so I wanted to create a new one.

GPG 2.1 came out a month ago including ECC support and I wanted to try the new key types.

So I have generated a brand new ed25519 key. Today I tried to upload it using gpg2 --send-key but then I couldn't find it. I also uploaded it manually on pgp.mit.edu and I got:

Key block added to key server database. New public keys added: 
1 key(s) added successfully.

but still couldn't find it with a search.

Why? Is it unsupported?