Transaction not yet indexed

Mb9Forg8cNoswwYhQbG4d91PeRAV3DdvHbM8pv9AiUSjQN9mrnUVZWsXziP1WwHMCVHBKQeABWtrRvQ9u5D1HM7

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