Transaction not yet indexed

xmk6LWQDdhwSDu8Hv5ZjZCus4VCN2e29MqP5PqxJCQ5vcXimTEuj9Ny7ks11Puv6sPELDQe1GLVR1qRgvb3Bm68

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