Transaction not yet indexed

KMEXmnLvikZcEHFLSUXQhcDoAHFrNZ2vpMmrAMziFwDQ2qDb9jt2ELXnqxXCEeuQvMwdi2uVYCXbjs52HhZBtu7

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