Underpriced replacement transactions, but no pending transactions shown @ rikeby.etherscan

So I have some conflicting inputs.

  1. Truffle console gives different transactions counts with and without pending, (77 vs 88)
  2. Rinkeby.etherscan doesn’t show any pending transactions
  3. Metamask gets “replacement transaction underpriced” (unless I put a very high “Max Fee”)

I have a script on a cronjob that started stalling when sending a transaction.
Did something changed in infura on the last week ?
This is my current network configuration (tried using EIP-1559 arguments but didn’t seem to work)

        {
        provider: () => new HDWalletProvider(`wss://rinkeby.infura.io/...)
        network_id: 4, // Rinkeby's id                                                                                        
        // gas: 6000000,
        gas: 6250000,
        gasPrice :             1000000000, // 1 Gwei                                                                          
        maxFeePerGas :         8000000000, // 8 Gwei                                                                          
        // maxPriorityFeePerGas : 5, // 5 Gwei                                                                                
        // timeoutBlocks : 5, // wait 5 minutes (20 blocks)                                                                   
        // deploymentPollingInterval: 70, // 10 seconds                                                                       
        skipDryRun: true,                                                                                                     
      },               

Any idea what maight be going on ? My script is always times out, (probably posting those pending tx’s)

hey, let’s handle this via the support ticket. thanks !