Transaction not yet indexed

MpUb4XrzBveYCK4NosLNTYk6MRbB9vTKFd4KngNnoxifNSPQ2A3bhqa56rs1pZ6u7onbFGT6s2SkSi4ZjMdTph8

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