Transaction not yet indexed

MMMEr7GKizA4xVA2pMyQe6JWvsKdv6WynuS7oViNqTtVtYfhLS7pVpp2xEFTB7VZ6WMULL9T9YesBCTPDVHfuZ6

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