Transaction not yet indexed

5UFC53sxmbKeyPgQDtohHMbajLYXEvTA4d31MHi7MKUwPK3WsSNvAzQM2Wt3ksJDVhCPfUVWmCgbjWdcsw3CjHX4

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