Transaction not yet indexed

MKXxTvZHUAjAabVamjBAGTwW6aHcMEuJqGKKK7uj8TtnYPgDv4YZzUsEbt4Xa3jCDNavtPRM5u34FiBAXFTkvsm

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