Transaction not yet indexed

28n87Z1UJDZQaBNVv8WxF6eCVUdHvFLDf2EibcXxq4C6sn7TCfpHRvkY6kaAEPFTrtmBFtkp7L3uPxmx5eqKDtRs

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