Transaction not yet indexed

519EndcNAPVfXe3gNHQWKCrqGC1qB1MKHMUX1wK8soQHzxZCstkUMVBHW5wp5EkdEyC3x6dsTUk3VKNPzc6hh9SU

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