Transaction not yet indexed

Cu56ZhCMJRHqMN3fs573saATfpEJVHBNhkdPNY4wLUma9tFEyxTspgtmbVRnQ6cMgFpXRAPe8DgdpidxYJNGhDa

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