Transaction not yet indexed

MNu4gApGuUSvWmzWxqzqbdksxQs3f8zQ6ivWMMVfS3pfjvszSHihNP7RBEtaW18Eh6JTiDBccMFSjHnS7mxU24F

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