Transaction not yet indexed

MpkSTT1rFBp5AHSU5YsDAm4oeF6mqGYUsof1LYfZ2pJ6cxnjdeweGxEMS57JQy7RAU6Dit2qbG7fPF7C3XHL9Q2

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