Essentially, you are re-submitting the to network validators for their do this for each one.
Sudden surge in the gas as well to complete the pending mefamask transaction. You can install the Metamask as well because sometimes transactions then try to complete the transaction using Polygon Wallet Suite.
Note that the Speed Up button is gone. As before, this transaction remains pending, with the "already known" error in geth logs Click Cancel, and accept gas fee: The transaction amount is now 0 but still pending, with the periodic "already known" errors replaced by "replacement transaction underpriced" errors. Send another small transaction, which should go through too: Popups show transaction 1 confirmed, then transaction 2 confirmed, and that transaction changes from Failed to Cancelled, with the cancellation fee charged: Initiate another transaction like the first, with nonce 4. I am speaking from experience.
