I'm running my own private network - I have 3 pending tx in the pool that are still there 6000 blocks later. I have the miner gas threshold at 0. Any idea why the tx's arent getting mined?
I'm assuming these are the first transactions submitted by the account. If so, your nonce should be starting at 0. The image shows that the first pending transactions with a nonce of 1. Those transactions won't be processed until a transaction with nonce 0 is submitted.