Transaction not yet indexed

5MDU4wJ4aEAbR89W4iiUxToYEUhNeMfxmx7DiFc4sqSBAEo5uy7LfuBPGZ3xG2i6tkgPmzFB1XhL3nzySB4Qe6FP

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