Transaction not yet indexed

28EKgV24FyXcegEcK74vNfXhDfjAXdvGHM21UrhTe3Z2GY1x9oqWEp8oJrRPkoNQvAtDZUMEKBSBESUWNWCLgaC1

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