I opened 2 subsequent wallets from the original after all this started (electrum wallet 1 and electrum wallet 2 from the main wallet) but haven't been able to do anything with them either. I've done all the suggestions on those wallets and get the same results. They show all the same info as the main wallet.
The options are you have the right wallet but you need to extend the gap limit as per nc50lc's instructions, you have the right seed phrase but are recovering the wrong wallet either via the wrong derivation path or a missing passphrase, you have the wrong seed phrase altogether, or your coins have been moved/stolen. Can you try to answer each of the following questions to help us narrow this down:
So am I correct in saying that your original wallet file, and the wallet file you recovered from your seed phrase, are identical, containing the same addresses? Do you have any other wallet files or seed phrases? Do you remember ever setting an additional passphrase or extending your seed phrase with custom words? Does your wallet show any transaction history - i.e. coins have come in and gone out, or is it just completely blank?
And what about the addresses which currently hold your coins? You are absolutely certain that your coins haven't been moved? You say these addresses which hold your coins came from an Electrum wallet - are you sure it was
this wallet? And you are sure you saw them show up in your Electrum wallet whenever you initially received them? What character to these addresses start with?
When you restored your wallet from the seed phrase, on the screen where you type in you seed phrase but before you click next it should have said something like "Seed Type: XXX" or "BIP39". What does yours say?