Transaction not yet indexed

5an56D2KRufgiJ6ATXmXNTHqFEQsBxotLAVBXTrVPXqqi1a2tKCGYm5ikxKHofhtkYuwFBTG1N2ADo2AaQFEJnn6

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