ismine function returns false...
So nothing, I was soooo sure, but wrong -_-

Thanks everybody for the help!

Hi!
I generated a public address from a brand new wallet on electrum and I forgot to press save..
Then I received a payment on that address.
Is it possible that electrum can't check that particular address? Because it doesn't show any payment received, and on blockchain.info I can see it. I'm sure I gave a correct public address from that wallet.
If so, can I get the private key corresponding to that public address from my seed and unblock my funds?

Thanks in advance.

Wannabe italian proofreader here! :-)