Abandoned transaction - now can't send anything Earlier today I sent a tx with too low a fee (5.4sat/byte). After many hours in BitcoinCore I abandoned the transaction with the right-click option with a plan to send it again with a higher fee. I achieved this by starting BitcoinCore with -walletbroadcast=0 and thereby accessing the abandon menu item

Now none of my transactions small - or - large will broadcast. In BitcoinCore I just get stuck with Status: 0/unconfirmed, in memory pool and when I try to use a pushtx like blockchain.com or viabtc I get the error Validation Error: BitcoindException(super=com.neemre.btcdcli4j.core.BitcoindException: Error #-26: 18: txn-mempool-conflict, code=-26)

Deleting the memcache file won't help either as its clearly in the memcache of other nodes.

In BitcoinCore the funds are showing as spendable and I am able to click send, it just wont broadcast.

What can I do? I run a pruned node so I can't use zapwallettxes and I can't use bumpfee as the Transaction is not BIP 125 replaceable (code -5)

I'm fresh out of ideas other than downloading 180GB full chain in order to run zapwallettxes
Once the tx is broadcast, you cannot simply cancel it. This is because nodes already know about it, and it is a valid transaction waiting to be mined. Since the fee is low, it might sit in the mempool for a couple weeks (see -mempoolexpiry), or until the mempool gets large enough it gets bumped out as the lowest fee rate tx (see -maxmempool default is 300MB). You can do something like replace by fee, which replaces the previous transaction with one that has a higher fee. I think the real question that needs to be asked is Why is my transaction not getting confirmed and what can I do about it? Also, How do transactions leave the memory pool might also be helpful.