Can't decrypt message encrypted with ECC

[Peter Humphreys]

I have created a test ECC 25519 subkey.

If I encrypt a file & sign a file to myself with gpg2 -esa
some_text.file it encrypts fine. But when trying gpg2 -v
some_text.file.asc I get the following error:

gpg: MyBuild
gpg: armor header: Version: GnuPG v2
gpg: public key is 3EF4BBBB
gpg: using subkey 3EF4BBBB instead of primary key D236473E
gpg: encrypted with 256-bit ECC key, ID 3EF4BBBB, created 2014-01-02
      "Peter Michael Humphreys (My Master Key RSA)
<eagleeyes426 at yahoo.com>"
gpg: decryption failed: No secret key


When listing my secret keys I get a # symbol next to the above key in
question is that normal?

ssb#   256e/3EF4BBBB 2014-01-02 Ed25519 [expires: 2015-01-02]

Regards,
Peter