Transaction not yet indexed

MtX99tH3F3cYFopf8yCTjoh4rkTNH3ZKjCKaARbjyiy2Y7DQRTfFPemRe5FuDMvbU4sfRZW4trEBEn8di3QeXqx

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