What's the result when you used sendrawtransaction command?
If it's success (txid) but not propagating, your peers may still have your old transaction and don't support "fullrbf" so they're rejecting it.
One solution is to use addnode command to connect to peers that is known to support fullrbf
like the ones listed he: petertodd.org/2023/why-you-should-run-mempoolfullrbf#full-rbf-peering

Another simple solution is to broadcast it to nodes that support it.
AFAIK, Blockstream supports fullrbf so try to broadcast the signed raw transaction there: blockstream.info/tx/push