Transaction not yet indexed

4c21vbHTsk9MP4r43c5ig1B2JS4seXitLherhs1Qye6vdsRMa9WujQ1V9oRG5HJzM2EX1Z3UqgEqKAV4RkFLNDBa

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