I have also recovered my BCC from blockchain.info wallet using same method you have mentioned above with electroncash.
I think either your electroncash is not synchronized or you might not had any balance during the time of fork.
Thanks I've solved my problem since. For anyone curious, what ended up working was sweeping the private key from blockchain.info, but I had to first uncompress it, copy/pasting the key didn't work.
That's good that you solved this problem by yourself,
So what client do you use to sweep with your coin from blockchain.info? Maybe you can mention it here so people having the same problem with yours can read it and will be able to solve their future problem regarding this matter.
Oops..I used electron cash to sweep the uncompressed blockchain.info private key. And I used
to uncompress that key. Hope this helps.