Transaction not yet indexed

mntUpuo2PN2d9tz8jeM1GW8bxd1YXBrdUk7tPYrmf4XVqjL2XPfMJUXA79N67o7EQvXCtPcBe4zYHQT8r5xYEtX

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