Transaction not yet indexed

MpRKdGVtw6KDYAXeEouFcrzkmit7kw4kzu9t7kMeVaDPB5Aeier8yZxttiTdAQoRbQx6diLCFLvHBaWUQp9oqky

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