Transaction not yet indexed

MKt21gAzxqjCSWycvufHG1Ex59XbNDhaCmyGbBMeLMpaz5GVWgAM89WyDxzUggsr9PbvFha2jArSWQ66kNFcAPC

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