Transaction not yet indexed

28tCovqUNTQu5aWSWhSyFc3UgG1vwkzeYPAehyQ8NfkLHViCcyvZsiwoAygbxo7pQowcPuMoSSJS5ShFdYTFX8R6

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