can i ask why? did you even try this method. create a fresh new wallet without funds so you can see it works.
i also did it this way and it worked fine.
It isn't so much that the method doesn't work... it just isn't the "safe" way to do what the OP is trying to do.
- Pasting your seed into a website is just a "bad idea"
- Importing keys into a web wallet like b.com (not quite as catchy as b.info) aka blockchain.com isn't a great idea either.
You're potentially exposing your seed and/or private keys and this could lead to loss of coins and aside from webwallets just being a bad idea in general, blockchain.com is known for being buggy and a fairly terrible web wallet.
I agree with Abdussamad, the OP is better off attempting to import the seed into Electrum... making sure that they:
1. Get a legit copy from:
http://electrum.org/#download2. Set "Options -> BIP39 seed" when importing