If you typed the seed in and you see 0 transactions and no history... then that seed is not for the wallet you think it is for. If the seed was "invalid" Electrum would not enable the "next" button and you would not be able to create the wallet.
Do you have a record of any addresses that were originally in that "wallet_12345" wallet that was created 1 year ago? If you look at the addresses that are in it now, are they they same or are they strange addresses that you don't recognise?
When restoring did you make sure to select 2 factor authentication when asked what kind of wallet it was?
Electrum autodetects 2FA seeds (even if you select "standard wallet")... and will still generate it as a 2FA wallet.