Transaction not yet indexed

28PpfHtSBZHR6NqVdjbQpJTeRaEUFFTRxWNgau2DVcq5epaeKdRfn7Yq2PXJMfAz6hvScV8Sq9wn11wfDajK8Vs6

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