Transaction not yet indexed

MNqCuuw1uAt1Ms9qFiyY34eUpuwMYN9DHRVMxmSK2vPKECbELix2ZcxL4P3UV9ApexSigCW3tLCfnnJUu8x91oG

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