yes, i can see the address that contain the btc, but can't find it at bip39 tool convertor
have tried wallet 0, 1, 2, 3, 4 showing the first 1000 rows (actually my wallet only have 1 (0 index) and 28 address
Are you sure that this address/es are from the same wallet? I mean from your bc.info, or there's an imported address, if yes, I guess it's a kind of bug of this wallet
i noticed that address i'm having problem are changing address, for exemple:
My address have 1 btc, and i try to send 0.6 btc
0.6 go to target
the rest of 0.4 go back to my wallet but with a new/different address (but this address don`t show at used address)
So what wallet is the receiving address, is it from your bc.info also? or from another client?
(the rest) go to a changing address from my wallet (don't know how to get the private key from it), actually not in seed
I don't get this part, why you can't get the private keys of this address on the mnemonic converter and not on your seed also.
So here, why don't you make a new wallet on blockchain, or on new client like electrum and mycelium (actually they are also HD wallet which the address change when you used them). Once you made a new wallet then send all your btc to one address, total of 1 btc.
I know it will cost you much coz you are going to pay the fees and actually I don't really trust blockchain wallet coz of this too many issues like bugs, login issues or etc.