Transaction not yet indexed

MMpKLfvhveJF7vBGFKNeSkAGZHU1gqAMpokpVvEm2Gx6S52VJKzyWou4HvMs6mcizPcRAT8h5jdn7d22HXK45H8

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