I am unable to open a wallet I created roughly 2 years ago. In that time I have been using MEW, MetaMask and something that I installed locally on Window, which I forgot the name of. Not sure which wallet actually generated the mnemonic, however MetaMask support claims it is probably not it.
The mnemonic phrase was stored in LastPass and LastPass has no history of any changes to it, so I believe it should be correct. I've tried to create the wallet with MetaMask, MEW and MyCrypto, but none worked.
One word in an arbitrary position is "rebound".
Checking the BIP39 wordlist my mnemonic doesn't match any word, which gives me an impression that the phrase was generated with another algorithm/word list.
With what algorithm could the mnemoinic be generated? Can we have a list of all of them here for others with similar issues?
The mnemonic phrase is 12 words long. I've never owned or used a hardware wallet.