Transaction not yet indexed

5C21gJsf3FT8DPSbVwXeGgfaw9Hr1VYAtmQmdton9BAdVR7dbB11wJYjnoMPgnKevmjPcqmyd4ckbEcrrcAYqFD7

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