Transaction not yet indexed

28mcp38EB887SPQ3GX9CZedadFtpjmBVxZsCcLdTpGmFBQf1z29MnpRLPyfsHZnXj6f2Tsfijq3oCUwyc1ZKtH1k

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