By breaking-down the vague parts, I think he's looking for the "
invalid address" (
prob 'bc1') that he used to withdraw from an exchange:
I still have a Wallet but I needed to create a new one.
So, I did. But no BTC in it.
-He created a new wallet and obviously, it doesn't have balance.
I created a BTC adress to receive and saved it with a name and created a Backup of this new wallet. So. I was waiting to receive a little value but the BTC address was invalid. When I logged into this new wallet, I verified that the Address hase not been saved, but I´m sure it was.
-He thought by creating an invoice in the receive tab, he had created a new address, then might have closed the 'new wallet' first, then the other wallet.
@
Sauaba Address aren't created and "
saved" as you requested one in the 'receive' tab.
Those are pre-generated as you created your wallet, it's just hidden by default. You can view them in the "
Addresses Tab" (
View->Show Addresses menu).
You can also create multiple wallet in Electrum without deleting the others.
If the list shows a set of addresses that starts with different number/letter than your "
saved address", then it's a different wallet.
Try to find if it's in your other wallet using "
File->Open" menu.
The reason why bech32 address (
bc1) is invalid was already answered.