Transaction not yet indexed

MkXwgUL8ubbDmLWGEWuc8zkAzJ5cMwDMHM7SkHq99FMHJPBpoEAk3MnUmX5Pnj9NPw2S3oVDzDVTim88AuSQC1J

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