[Sequencer] stuck transactions

[hexoscott]

We had a network which stopped processing transactions. From the logs you can see a consistent number of pending transactions that isn't going down and lots of attempts to replace transactions which are not successful. After restarting the sequencer things started to process as normal and the network was fine.

Logs: https://drive.google.com/file/d/1_ypTXulLVq3pzjk1UB-8y3jChePFV-Oc/view?usp=sharing

[hexoscott]

Fixed by #1417 - a more elegant solution can follow later but the immediate problem is solved

[hexoscott]

Re-opening, this issue is still open, not related to large counter transactions

[hexoscott]

Closing this issue now, there have been several PRs now targetting this and the latest code on humanity network shows it is working well.