Transaction not yet indexed

UEX6mdmMM5EEYurQ4RufJG6PoYJxKUNTkesrD9ndmqaDpmfzHkW6YzT5pfsgMj4dvmNMq4FMpT2mqwjyCQWMv3B

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.