Transaction not yet indexed

MKKQmuu6yGUJScbR9QJa1cGcWZ7Gx5nuQm3PbHB3b9pHU91L2jEjXHgEZGSdJ4yRfeRkfid1MkQnH8Tp54R4xcB

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